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<p>2019-12-31 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/gradient.c (ReadGRADIENTImage): QueryColorDatabase() only
throws a warning so allow the warning to propagate to the user
rather than failing to report a useful message at all.</li>
</ul>
</blockquote>
<p>2019-12-30 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/gradient.c (GradientImage): OpenMP portability requires
that loop variable be signed.</li>
</ul>
</blockquote>
<p>2019-12-30 Fojtik Jaroslav <<a class="reference external" href="mailto:JaFojtik%40seznam.cz">JaFojtik<span>@</span>seznam<span>.</span>cz</a>></p>
<blockquote>
<ul class="simple">
<li>magick/gradient.c: Visual studio does not compile file without
this fix.</li>
</ul>
</blockquote>
<p>2019-12-30 Fojtik Jaroslav <<a class="reference external" href="mailto:JaFojtik%40seznam.cz">JaFojtik<span>@</span>seznam<span>.</span>cz</a>></p>
<blockquote>
<ul class="simple">
<li>VisualMagickconfigureconfigure.cpp Add option for speed optimisation
to achieve better performance.</li>
</ul>
</blockquote>
<p>2019-12-29 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/version.h.in: Bump copyright years.</li>
<li>magick/image.c (DisplayImages): Fix return status. Was
returning inverted return status.</li>
<li>coders/gradient.c (ReadGRADIENTImage): Support the
"gradient:direction" definition to produce produce additional
gradient vector directions corresponding to South, North, West,
East, NorthWest, NorthEast, SouthWest, and SouthEast. This
support is similar to a useful feature added in ImageMagick
6.9.2.5 although there is no claim that the results are identical,
even if the resulting images appear to be visually
indistinguishable.</li>
<li>magick/gradient.c (GradientImage): Add support for using the
image 'gravity' attribute to produce additional gradient vector
directions corresponding to SouthGravity (the previously-existing
default), NorthGravity, WestGravity, EastGravity,
NorthWestGravity, NorthEastGravity, SouthWestGravity, and
SouthEastGravity. Gradient images are updated to be PseudoClass
(color-mapped), if possible.</li>
</ul>
</blockquote>
<p>2019-12-28 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/gradient.c (GradientImage): Output PseudoClass images if
we can.</li>
<li>coders/pcx.c (WritePCXImage): Fix heap overflow in PCX writer
when bytes per line value overflows its 16-bit storage unit.
Fixes SourceForge bug #619 "heap-buffer-overflow in WritePCXImage"
reported by Suhwan Song.</li>
<li>magick/gradient.c (GradientImage): Gradient levels were still
not spot-on. Now they are. Unfortunately, this necessitated
re-generating reference test images based on gradient since the
gradient output has changed a little bit more than the test error
margins allow.</li>
</ul>
</blockquote>
<p>2019-12-25 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Test gradient image resource limits
using the proper API.</li>
<li>magick/resource.c (ResourceInfinity): Fix definition of
ResourceInfinity. Due to parenthesis in the wrong place, the
defined value was -1 rather than the maximum range value. The
effect of this is that GetMagickResource() would return -1 rather
than the maximum range value for the return type as documented.
Regression was added on Saturday, March 09, 2019 in the 1.3.32
release via changeset 15927:a5318823758c.</li>
<li>tests/rwfile.c (main): Allow Ghostscript supported formats to be
a bit lossy.</li>
<li>tests/rwblob.c (main): Allow Ghostscript supported formats to be
a bit lossy.</li>
<li>magick/gradient.c (GradientImage): Compute blending alpha with
double precision for more precision.</li>
</ul>
</blockquote>
<p>2019-12-24 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>NEWS.txt: Updates in preparation for 1.3.34 release.</li>
</ul>
</blockquote>
<p>2019-12-22 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>NEWS.txt: Update with changes since the last GM release.</li>
<li>coders/png.c (png_read_raw_profile): Use size_t type to store
profile length and 'nibbles'. Use safer way to test for profile
buffer overflow.
(ReadOnePNGImage): Use size_t type to store 'ping_rowbytes',
'length', and 'row_offset'. Check png_pixels allocation for
arithemetic overflow when computing the required allocation size.</li>
<li>coders/tiff.c (WriteNewsProfile): Use size_t type to store
profile length.</li>
<li>coders/pict.c (WritePICTImage): Avoid 'alloc-size-larger-than'
warning from GCC when allocating row_bytes.</li>
</ul>
</blockquote>
<p>2019-12-21 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>tiff/libtiff/tiffconf.h: Add standard/common libtiff 'SUPPORT'
options which are used in full-fledged Autoconf/Cmake libtiff
builds but were missing from the Visual C template file. In
particular, WebP is now supported and JBIG is somewhat supported.</li>
<li>VisualMagick/jbig/libjbig/LIBRARY.txt (EXCLUDE): Remove
tstcodec85.c from JBIG library build.</li>
<li>VisualMagick/configure/configure.cpp: Add JBIG library to
include path when building libraries. Add WebP as a dependency
when building libtiff.</li>
</ul>
</blockquote>
<p>2019-12-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/nt_base.h ("C"): Assume that float versions of functions
became available in Visual Studio 2008.</li>
</ul>
</blockquote>
<p>2019-12-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/log.c (InitializeLogInfo): Using the compiled-in
defaults, always log to stderr by default, even under Microsoft
Windows. The logging output may then be diverted to
'win32eventlog' as soon as a log.mgk file is loaded if that is
desired. This should not be much of a problem because loading a
log.mgk file is the first thing that the library attempts to do.
This change is made due to users and developers being baffled at
not seeing any log output due to the log output going to the (very
unfriendly) Windows application log.</li>
<li>webp: libwebp is updated to the 1.0.3 release.</li>
</ul>
</blockquote>
<p>2019-12-15 Fojtik Jaroslav <<a class="reference external" href="mailto:JaFojtik%40seznam.cz">JaFojtik<span>@</span>seznam<span>.</span>cz</a>></p>
<blockquote>
<ul class="simple">
<li>magick/nt_base.c Fix user only installation of Ghostscript.</li>
</ul>
</blockquote>
<p>2019-12-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>rungm.sh.in (DIRSEP): DIRSEP should always use Unix conventions for
Autotools-based builds.</li>
<li>magick/module.h ("C"): Eliminiate redundant and conflicting
ListModuleInfo() prototype.</li>
<li>coders/miff.c (ReadMIFFImage): Eliminate warnings in trace
statements.</li>
<li>coders/dib.c (DecodeImage): Eliminate warnings in trace
statements.</li>
<li>coders/bmp.c (DecodeImage): Eliminate warnings in trace
statements.</li>
<li>magick/studio.h (SupportMagickModules): Fix the preprocessor
logic controlling SupportMagickModules, which became broken for
GCC MinGW-based builds starting in the 1.3.29 release when a
"static" module loader was implemented. Due to an error in the
preprocessor logic, only the "modules" based build was working for
MinGW. Much thanks to Giovanni Remigi for making us aware of this
issue.</li>
</ul>
</blockquote>
<p>2019-12-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pict.c (WritePICTImage): Throw a writer exception if the
PICT width limit is exceeded. Fixes SourceForge issue 617
"heap-buffer-overflow in function EncodeImage of coders/pict.c".</li>
</ul>
</blockquote>
<p>2019-12-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>jbig: jbigkit is updated to 2.1 release.</li>
<li>libxml: libxml2 is updated to 2.9.10 release.</li>
<li>bzlib: bzip is updated to 1.0.8 release.</li>
<li>zlib: zlib is updated to 1.2.11 release.</li>
<li>png: libpng is updated to 1.6.37 release.</li>
</ul>
</blockquote>
<p>2019-12-07 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>lcms: lcms2 is updated to 2.9 release.</li>
<li>tiff: libtiff is updated to 4.1.0 release.</li>
</ul>
</blockquote>
<p>2019-11-24 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawPatternPath): Don't leak memory if
fill_pattern or stroke_pattern of cloned draw_info are not null.
Fixes oss-fuzz issue 18948 "graphicsmagick:coder_MVG_fuzzer:
Indirect-leak in CloneImage".
(PrimitiveInfoRealloc): Clear freshly-allocated PrimitiveInfo
memory.</li>
</ul>
</blockquote>
<p>2019-11-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/attribute.c (GenerateEXIFAttribute): Fix oss-fuzz issue
17986 "graphicsmagick:coder_JPG_fuzzer: Heap-buffer-overflow in
GenerateEXIFAttribute". This problem likely only happens in
32-bit builds.</li>
</ul>
</blockquote>
<p>2019-11-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (ReadMNGImage): Only magnify the image if the
requested magnification methods are supported.</li>
</ul>
</blockquote>
<p>2019-11-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/compress.c (HuffmanDecodeImage): Fix signed overflow on
range check which leads to heap overflow in 32-bit
applications. Requires a relatively large file input compared with
typical fuzzer files (greater than a megabyte) to trigger.
Problem reported to the graphicsmagick-security mail address by
Justin Tripp on 2019-11-13.
(Ascii85Tuple): Fix thread safety issue by requiring caller to
pass in tuple buffer as an argument and having callers allocate
tuple buffer on the stack.</li>
</ul>
</blockquote>
<p>2019-11-10 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/bit_stream.c: Add restrict declarations to slightly
improve performance and decrease code size.</li>
<li>TclMagick/pkgIndex.tcl: Incorporate recommendations from third
problem noted in SourceForge issue #420 "TclMagick issues and
patch". This is supposed to help support using an uninstalled
GraphicsMagick and allow the installation path to contain a space.</li>
<li>wand/magick_wand.c (MagickClearException): Destroy any existing
exception info before re-initializing the exception info or else
there will be a memory leak.</li>
<li>TclMagick/generic/libttkcommon.c (myMagickError): Clear
exception from the Wand after it has been reported. Addresses the
fourth problem noted by SourceForge issue #420 "TclMagick issues
and patch". However, MagickClearException() already clears an
exception in the Wand, so a new function is not needed.</li>
<li>TclMagick/unix/m4/tcl.m4: Change hard-coded INSTALL path to
point to config/install-sh. Re-generated/updated Autotools stuff
by executing the genconf.sh script. Addresses the first problem
noted by SourceForge issue #420 "TclMagick issues and patch".</li>
</ul>
</blockquote>
<p>2019-11-02 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (SetNexus): Eliminate warning about
possibly uninitialized variable from primordial GCC 3.4.3.</li>
<li>magick/render.c (ConvertPrimitiveToPath): Eliminate warning that
IsClosedSubPath might be used uninitialized.</li>
<li>magick/common.h ("MAGICK_FALLTHROUGH"): Added a
MAGICK_FALLTHROUGH macro to support the GCC/Clang fallthrough
attribute when the time comes again that it would be useful.</li>
</ul>
</blockquote>
<p>2019-10-19 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pcx.c (ReadPCXImage): Verify that pixel region is not
negative. Assure that opacity channel is initialized to
opaqueOpacity. Update DirectClass representation while
PseudoClass representation is updated. Improve read performance
with uncompressed PCX.</li>
</ul>
</blockquote>
<p>2019-10-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/xpm.c (ReadXPMImage): Image properties are expected to
appear within the first 512 bytes of the XPM file header. fixes
oss-fuzz 18267 "graphicsmagick:coder_PICON_fuzzer: Timeout in
coder_PICON_fuzzer".</li>
</ul>
</blockquote>
<p>2019-10-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>configure.ac: Fix tcmalloc configuration report.</li>
</ul>
</blockquote>
<p>2019-10-13 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/wpg.c (ReadWPGImage): Implement subimage/subrange
support.</li>
<li>coders/mat.c (ReadMATImage, ReadMATImageV4): Implement
subimage/subrange support. Should resolve oss-fuzz 14999
"graphicsmagick/coder_MAT_fuzzer: Out-of-memory in
graphicsmagick_coder_MAT_fuzzer".</li>
<li>coders/tiff.c (TIFFMapBlob): Fix compile problem if
LOG_TIFF_BLOB_IO is defined.</li>
<li>coders/wpg.c (ExtractPostscript): Improve performance. Avoid
temporary files if possible. Avoid additional memory allocations
if possible. Should address oss-fuzz issue 18173
"graphicsmagick:enhance_fuzzer: Timeout in enhance_fuzzer" and
oss-fuzz issue 17714 "graphicsmagick:coder_WPG_fuzzer: Timeout in
coder_WPG_fuzzer".</li>
</ul>
</blockquote>
<p>2019-10-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pnm.c (PNMInteger): Place a generous arbitrary limit on
the amount of PNM comment text to avoid denial of service
opportunity. Fixes oss-fuzz 18162 "Timeout · coder_PNM_fuzzer".</li>
</ul>
</blockquote>
<p>2019-10-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/dps.c (ReadDPSImage): Fix memory leak when OpenBlob()
reports failure. Same as ImageMagick CVE CVE-2019-16709.</li>
</ul>
</blockquote>
<p>2019-09-27 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/attribute.c (GenerateEXIFAttribute): Skip
unsupported/invalid format 0. Fixes oss-fuzz issue 17597
"graphicsmagick:coder_SFW_fuzzer: Heap-buffer-overflow in
GenerateEXIFAttribute".</li>
</ul>
</blockquote>
<p>2019-09-19 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>fuzzing/oss-fuzz-build.sh: Change by Alex Gaynor so that the
correct oss-fuzz fuzzing engine should be used.</li>
</ul>
</blockquote>
<p>2019-09-18 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/static.c (OpenModule): Static module loader should use
upper-cased magick string when searching for a module alias.
Fixes SourceForge issue #613 "static module loader is still
case-sensitive".</li>
</ul>
</blockquote>
<p>2019-09-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>configure.ac: Report status of zstd (FaceBook Zstandard)
compression in configuration summary.</li>
</ul>
</blockquote>
<p>2019-09-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (TraceArcPath): Substitute a lineto command when
tracing arc is impossible. Fixes oss-fuzz 10765
"graphicsmagick/coder_MVG_fuzzer: Divide-by-zero in TraceArcPath".</li>
</ul>
</blockquote>
<p>2019-09-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (png_read_raw_profile): Fix validation of raw
profile length. Fixes oss-fuzz 16906
"graphicsmagick:coder_ICO_fuzzer: Out-of-memory in
graphicsmagick_coder_ICO_fuzzer".</li>
<li>coders/wpg.c (ReallocColormap): Avoid dereferencing a null
pointer if image->colormap is null. Fixes oss-fuzz 17004
"graphicsmagick:coder_WPG_fuzzer: Null-dereference READ in
ReallocColormap".</li>
</ul>
</blockquote>
<p>2019-09-13 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/memory.c (MagickRealloc): Add a note that the behavior of
this function is as described for BSD reallocf(3), which is now
appearing in Linux's GNU libc and elsewhere.</li>
</ul>
</blockquote>
<p>2019-09-09 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>www/OpenMP.rst: Document the significant OpenMP speed-up which
may be obtained by using an alternate memory allocation library.
Currently 'tcmalloc', 'mtmalloc', and 'umem' are supported as
options.</li>
<li>www/INSTALL-unix.rst: Document new --with-tcmalloc option to
enable using Google gperftools tcmalloc library.</li>
<li>configure.ac: Add support for using Google gperftools tcmalloc
library via the --with-tcmalloc option.</li>
<li>scripts/rst2htmldeco.py: Port to Python 3 syntax and require at
least Python 2.6.</li>
<li>scripts/relpath.py: Port to Python 3 syntax and require
at least Python 2.6.</li>
<li>scripts/html_fragments.py: Port to Python 3 syntax and require
at least Python 2.6.</li>
<li>scripts/format_c_api_doc.py: Port to Python 3 syntax and require
at least Python 2.6.</li>
</ul>
</blockquote>
<p>2019-08-27 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>doc/GraphicsMagick.imdoc: Document gm utility exit status codes.</li>
</ul>
</blockquote>
<p>2019-08-25 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (PRIMITIVE_INFO_POINTS_MAX): SIZE_MAX apparently
rounds up by one when cast to a double on 64-bit systems. Due to
this, and in order to set more rational implementation limits, add
a PRIMITIVE_INFO_POINTS_MAX definition which computes and
constrains the maximum number of PrimitiveInfo entries allowed.</li>
</ul>
</blockquote>
<p>2019-08-24 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/attribute.c (GenerateEXIFAttribute): Check that we are
not being directed to read an IFD that we are already parsing and
quit in order to avoid a loop. Addresses oss-fuzz 15753
"graphicsmagick/coder_JPEG_fuzzer: Timeout in
graphicsmagick_coder_JPEG_fuzzer" and 16068
"graphicsmagick/coder_SFW_fuzzer: Timeout in
graphicsmagick_coder_SFW_fuzzer".</li>
<li>tests/{constitute.c, drawtest.c, rwblob.c, rwfile.c}: Eliminate
irritating GCC 9 "__builtin_strncpy' output may be truncated"
warnings due to copying MaxTextExtent-1 characters. Instead
request copying all of the characters and also assure that string
is still null terminated.</li>
<li>doc/environment.imdoc: Update documentation pertaining to HOME
and MAGICK_DEBUG environment variables.</li>
</ul>
</blockquote>
<p>2019-08-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/log.c (DestroyLogInfo): Only output text to terminate an
XML format log file if XML format is active.</li>
</ul>
</blockquote>
<p>2019-08-22 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (ExtractTokensBetweenPushPop): Previous fix for
non-terminal loop was broken by a last-minute untested edit.
Finally addresses oss-fuzz 15318 "graphicsmagick/coder_MVG_fuzzer:
Timeout in graphicsmagick_coder_MVG_fuzzer".</li>
</ul>
</blockquote>
<p>2019-08-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>fuzzing/utils.cc (MemoryResource): Lessen the memory limit used
for oss-fuzz testing in order to provide more headroom and margin
for error.</li>
<li>magick/render.c (TraceBezier): Detect arithmetic overflow and
return errors via normal error path rather than exiting. Fixes
oss-fuzz 16450 "graphicsmagick:coder_MVG_fuzzer: Unexpected-exit
in DefaultFatalErrorHandler".
(PrimitiveInfoRealloc): Implement more paranoid code related to
primitive allocation.</li>
</ul>
</blockquote>
<p>2019-08-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawStrokePolygon): Handle case where
TraceStrokePolygon() returns NULL. Addresses oss-fuzz 15516
"graphicsmagick/coder_MVG_fuzzer: ASSERT: primitive_info !=
(PrimitiveInfo *) NULL".
(DrawDashPolygon): Handle case where DrawStrokePolygon() returns
MagickFail. Also needed to address oss-fuzz 15516, since otherwise
test-cases run for a very long time.
(ExtractTokensBetweenPushPop): Fix non-terminal parsing loop.
Addresses oss-fuzz 15318 "graphicsmagick/coder_MVG_fuzzer: Timeout
in graphicsmagick_coder_MVG_fuzzer".</li>
</ul>
</blockquote>
<p>2019-08-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/memory.h (MagickMallocAlignedArray): Add function
attributes for added value and to quench GCC 9 warning with
special build options enabled.</li>
<li>magick/deprecate.h (AcquireMemory): Add more function attributes
to quench GCC 9 warning with special build options enabled.</li>
<li>magick/attribute.c (GenerateEXIFAttribute): Fix compilation
warning in 32-bit build.</li>
<li>coders/dpx.c (AttributeToString): Eliminate annoying warnings
from GCC 9, although the code was correct.</li>
<li>coders/msl.c (MSLStartElement): Fix defective opacity percentage
code revealed by GCC 9 warning.</li>
</ul>
</blockquote>
<p>2019-08-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (ReadMNGImage): Skip coalescing layers if there is
only one layer. Fixes oss-fuzz 16274
"graphicsmagick/coder_MNG_fuzzer: Unexpected-exit in
DefaultFatalErrorHandler".</li>
</ul>
</blockquote>
<p>2019-08-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (ReadPNGImage): Post-processing to convert the
image type in the PNG reader based on a specified magick prefix
string is now disabled. This can (and should) be done after the
image has been returned. Fixes oss-fuzz 16386
"graphicsmagick:coder_PNG8_fuzzer: Timeout in
graphicsmagick_coder_PNG8_fuzzer".</li>
</ul>
</blockquote>
<p>2019-07-20 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>NEWS.txt: Updates in preparation for 1.3.33 release.</li>
</ul>
</blockquote>
<p>2019-07-19 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>NEWS.txt: Updated NEWS to reflect updates since last release.</li>
</ul>
</blockquote>
<p>2019-07-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (WriteOnePNGImage): Fix saving to palette when
image has an alpha channel but no color is marked as transparent.
Patch submitted by Przemysław Sobala via SourceForge patch #61
"WriteOnePNGImage(): Fix saving to palette when image has an alpha
channel but no color is marked as transparent".</li>
<li>doc/options.imdoc (characters): Fix -format documentation to
reflect that '%r' returns the image type. Patch submitted by
Przemysław Sobala via SourceForge patch #60 "Fix documentation
typo".</li>
</ul>
</blockquote>
<p>2019-07-07 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/tempfile.c (AcquireTemporaryFileDescriptor): Fix
compilation under Cygwin. Patch by Marco Atzeri and submitted via
email to the graphicsmagick-help mailing list on Fri, 5 Jul 2019.</li>
</ul>
</blockquote>
<p>2019-06-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/attribute.c (GenerateEXIFAttribute): Added range checks
and tracing. Fixes oss-fuzz 14998
"graphicsmagick/coder_JPEG_fuzzer: Heap-buffer-overflow in
Read32s". This is a tiny read overflow.</li>
<li>coders/miff.c (ReadMIFFImage): Similar fix as to mpc.c</li>
<li>coders/mpc.c (ReadMPCImage): Fix faulty signed overflow logic
for profiles[i].length which still allowed overflow. Fixes
oss-fuzz issue 15190 "graphicsmagick/coder_MPC_fuzzer:
Out-of-memory in graphicsmagick_coder_MPC_fuzzer".</li>
<li>doc/options.imdoc: Add notes about security hazards due to
commands which support a <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>' syntax.</li>
<li>www/security.rst: Add notes about security hazards due to
commands which support a <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>' syntax.</li>
</ul>
</blockquote>
<p>2019-06-22 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Assure that 'token' is initialized.
Fixes oss-fuzz issue 14897 "graphicsmagick/coder_MVG_fuzzer:
Use-of-uninitialized-value in DrawImage".</li>
<li>magick/animate.c (MagickXAnimateImages): Fix memory leak of
scene_info.pixels.</li>
<li>magick/display.c (MagickXDisplayImage): Fix heap overwrite of
windows->image.name and windows->image.icon_name buffers. It
appears that the code assumed that CloneString() would always
allocated a string at least MaxTextExtent in size. I assume that
this issue has existed for a very long time since CloneString()
was re-written many years ago.</li>
<li>coders/caption.c (ReadCAPTIONImage): The CAPTION reader did not
appear to work at all any more. Now it works again, but still not
very well.</li>
<li>magick/command.c: Re-implement '@' file inclusion support for
-comment, -draw, -format, and -label which was removed for the
1.3.32 release. Note that arguments from untrusted sources will
still need to be sanitized to detect attempts to subvert this
feature to access file data, but this feature has always been
supported by GraphicsMagick and it originated early in the
development of ImageMagick.</li>
</ul>
</blockquote>
<p>2019-06-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/utility.c (MagickStrlCat, MagickStrlCpy): Add debug
checks enabled by MAGICK_STRL_CHECK.</li>
<li>magick/montage.c (MontageImages): Fix wrong length argument to
strlcat() when building montage directory, which could allow heap
overwrite.</li>
<li>coders/png.c (RegisterPNGImage): Pass correct size value to
strlcat(). Under Apple's OS X (and possibly other targets)
strlcat() writes bytes beyond what it needs to (but within the
range it is allowed to) causing a crash due to the wrong limit
value. Fixes SourceForge issue #609 <cite>gm identify foo.png</cite> crashes
on macOS (v 1.3.32).</li>
<li>www/Changes.rst: Update ChangeLog links due to new year, and
1.3.32 release.</li>
</ul>
</blockquote>
<p>2019-06-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/bmp.c (WriteBMPImage): Detect arithmetic overflow of
image_size. Add more tracing. Reduce compilation warnings.
(EncodeImage): Reduce compilation warnings.
(WriteBMPImage): Assure that chromaticity uses double-precision
for multiply before casting to unsigned integer.</li>
<li>coders/wpg.c (ReallocColormap): Reduce compilation warnings.</li>
<li>coders/braille.c (WriteBRAILLEImage): Reduce compilation
warnings.</li>
<li>coders/dib.c (WriteDIBImage): Detect arithmetic overflow of
image_size. Reduce compilation warnings.
(EncodeImage): Reduce compilation warnings.</li>
<li>coders/locale.c (WriteLOCALEImage): Reduce compilation warnings.</li>
</ul>
</blockquote>
<p>2019-06-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>Makefile.am (dist-zstd): Use the maximum possible compression
level (22) when creating a Zstd-compressed tarball to get close to
lzip/xz compression levels.</li>
<li>coders/tiff.c (ReadTIFFImage): Fix typo in initialization of
'tile' pointer variable.</li>
<li>version.sh: Updates in preparation for 1.3.32 release.</li>
</ul>
</blockquote>
<p>2019-06-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>Makefile.am (release): Add a release target to make it easier to
produce and sign the release files. Add a zstd-compressed output
tarball just because we can.</li>
</ul>
</blockquote>
<p>2019-06-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Fix typo when initializing
number_coordinates. Somehow GCC and clang let this typo slip by.</li>
</ul>
</blockquote>
<p>2019-06-11 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/dib.c (ReadDIBImage): Preserve PseudoClass opaque
representation if ICO mask is opaque, otherwise return a
DirectClass image.</li>
</ul>
</blockquote>
<p>2019-06-10 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Detect an error in TracePath() and
quit rather than forging on.</li>
</ul>
</blockquote>
<p>2019-06-09 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Terminate drawing if
DrawCompositeMask() reports failure. Fixes oss-fuzz 12373
"graphicsmagick/coder_MVG_fuzzer: Timeout in
graphicsmagick_coder_MVG_fuzzer".
(TracePath): Terminate path parsing upon first parsing error.</li>
</ul>
</blockquote>
<p>2019-06-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/txt.c (ReadTXTImage): Use real a new-line character as
line delimiter rather than 'n' string.</li>
<li>magick/annotate.c (AnnotateImage): No longer implicitly call
TranslateText() since this is not suitable for most use-cases and
causes additional performance impact. The API user can perform
such translations in advance on the text string using
TranslateText() if need be. No longer call StringToList() to
split strings into an array of strings since this can lead to
unexpected results, and a custom-splitter is more efficient.</li>
</ul>
</blockquote>
<p>2019-06-06 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawImage): Only support <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>' syntax to
read drawing primitive from a file if we are not already drawing.</li>
<li>magick/utility.c (TranslateTextEx): Remove support for reading
from a file using <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>' syntax due to security concerns.
Problem was reported to us by "Battle Furry" via the
GraphicsMagick security mail alias on June 6, 2019.</li>
</ul>
</blockquote>
<p>2019-06-03 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/utility.c (SetClientFilename): Reduce initialized data
some more.</li>
</ul>
</blockquote>
<p>2019-06-02 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/nt_base.c: Search for n019003l.pfb (the "Helvetica"-like
font) rather than fonts.dir since fonts.dir is not present in all
URW font collections.</li>
<li>NEWS.txt: Update news.</li>
</ul>
</blockquote>
<p>2019-06-01 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/logo.c: Tidy logo image definitions, and logo image
output.</li>
</ul>
</blockquote>
<p>2019-05-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/mat.c: Make more data const.</li>
</ul>
</blockquote>
<p>2019-05-22 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/animate.c: Reduce initialized static allocations.</li>
<li>magick/display.c: Reduce initialized static allocations.</li>
<li>magick/widget.c (MagickSplitNDLTextToList): Add static
implementation function.</li>
</ul>
</blockquote>
<p>2019-05-20 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/webp.c (RegisterWEBPImage): Use sprintf to format version
since snprintf is not available in old Visual Studio.</li>
</ul>
</blockquote>
<p>2019-05-19 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/dcm.c: Make more data const.</li>
<li>www/INSTALL-unix.rst: Add documentation for how to install URW
fonts from various package management systems.</li>
</ul>
</blockquote>
<p>2019-05-18 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>www/authors.rst: Add authorship attribution to Samuel Thibault
for contributing support for the Braille image format.</li>
<li>coders/braille.c: Add support for Braille image format by Samuel
Thibault. Patch submitted via SourceForge patch #59 "Add braille
image format support.</li>
</ul>
</blockquote>
<p>2019-05-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/tempfile.c: Make more data const.</li>
<li>magick/signature.c: Make more data const.</li>
<li>magick/quantize.c: Make more data const.</li>
<li>magick/attribute.c: Make more data const.</li>
<li>coders/png.c: Make more data const.</li>
<li>coders/mpeg.c: Make more data const.</li>
<li>coders/wmf.c: Make more data const.</li>
<li>coders/tile.c: Make more data const.</li>
</ul>
</blockquote>
<p>2019-05-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/enum_strings.c: Make more data const.</li>
</ul>
</blockquote>
<p>2019-05-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/magick.c: Make more data const.</li>
<li>magick/type.c (GetTypeInfoByFamily): Make more data const.</li>
<li>magick/unix_port.c (MagickGetMMUPageSize): Decrease initialized
data.</li>
<li>magick/utility.c (GetPageGeometry): Make more data const.</li>
<li>coders/pdf.c (WritePDFImage): Allocate working buffer on stack
and pass as argument to EscapeParenthesis() to eliminate a thread
safety problem and also reduce BSS size.</li>
<li>coders/webp.c (RegisterWEBPImage): Fix compiler warning.</li>
<li>coders/jbig.c (RegisterJBIGImage): Make more data const.</li>
<li>coders/pict.c (DecodeImage): Allocate output buffer used by
ExpandBuffer() on the stack rather than as static data private to
ExpandBuffer(). Eliminates a thread safety problem and also
reduces BSS size.</li>
<li>coders/webp.c (RegisterWEBPImage): Reduce BSS size.</li>
</ul>
</blockquote>
<p>2019-05-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/jp2.c: Make more data const.</li>
<li>coders/wmf.c: Make more data const.</li>
<li>coders/ps.c (WritePSImage): Make more data const.</li>
<li>coders/ps2.c (WritePS2Image): Make more data const.</li>
</ul>
</blockquote>
<p>2019-05-13 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/static.c: Revert to previous 'name' storage. Callback
functions in structure block being properly const.</li>
<li>coders/xpm.c: Make more data const.</li>
<li>coders/pnm.c: Make more data const.</li>
<li>coders/palm.c: Make more data const.</li>
<li>coders/meta.c: Make more data const.</li>
<li>coders/dcraw.c: Make more data const.</li>
<li>magick/command.c: Fix compilation problem when HasX11 is not
defined.</li>
</ul>
</blockquote>
<p>2019-05-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/command.c: Make more data const.</li>
</ul>
</blockquote>
<p>2019-05-11 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/webp.c (RegisterWEBPImage): Make more data const.</li>
<li>coders/svg.c (RegisterSVGImage): Reduce BSS size.</li>
<li>coders/miff.c (RegisterMIFFImage): Fix version reporting.</li>
<li>coders/ttf.c (RegisterTTFImage): Fixed reporting of FreeType
version.</li>
<li>coders/tiff.c (RegisterTIFFImage): Reduce BSS size.</li>
<li>coders/sfw.c (ReadSFWImage): Make SFW static data completely
const.</li>
<li>coders/ps3.c: Make PS3 static data completely const.</li>
<li>coders/pict.c: Make PICT static data completely const.</li>
<li>magick/error.c (ThrowException, ThrowLoggedException): Handle
the case where some passed character strings refer to existing
exception character strings. Fixes SourceForge issue #603
"heap-use-after-free in function ThrowLoggedException of
magick/error.c".
(CatchException): Restructure so there is one return point.</li>
<li>coders/miff.c (ImportRLEPixels): Fix heap overflow caused by a
typo in the code. Also fix undefined behavior caused by large
left shifts of an unsigned char. Fixes SourceForge issue #608
"heap-buffer-overflow in ImportRLEPixels of coders/miff.c.</li>
</ul>
</blockquote>
<p>2019-05-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/bmp.c (ReadBMPImage): Fix subrange/scene handling in
'ping' mode so it is like the other formats. Only the first frame
was being enumerated while in 'ping' mode.</li>
</ul>
</blockquote>
<p>2019-05-07 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>NEWS.txt: Update news.</li>
<li>magick/utility.c (ExpandFilenames): Only expand <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>' to a
list of arguments read from 'filename' if the path <a class="reference external" href="mailto:'%40filename">'<span>@</span>filename</a>'
does not exist. This fix is made based on an email posting to the
'graphicsmagick-help' mailing list at SourceForge by "Test User"
on Tue, 7 May 2019.</li>
</ul>
</blockquote>
<p>2019-05-05 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/colorspace.c: Reorder initialization of colorspace tables
for a possible performance improvement.</li>
<li>magick/fx.c (WaveImage): Use float for sin map.</li>
<li>configure.ac: Test for float versions of math functions.</li>
<li>magick/gem.c (GenerateDifferentialNoise): Use float versions of
math functions when available.</li>
</ul>
</blockquote>
<p>2019-05-02 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>www/INSTALL-unix.rst: Expanded configure documentation for
--with-modules. Added specific configure documentation for
--with-umem and --with-mtmalloc, which may be useful on
Solaris-derived systems.</li>
</ul>
</blockquote>
<p>2019-04-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/command.c (VersionCommand): Show OpenMP specification
version corresponding to version enumeration.</li>
<li>magick/locale.c (GetLocaleMessageFromTag): Eliminate clang
warning about comparison with a constant value.</li>
<li>magick/log.c (InitializeLogInfo): Initialize LogInfo log_configured.</li>
</ul>
</blockquote>
<p>2019-04-21 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/magic.c (struct): Ajust StaticMagic definition to be more
const-friendly.</li>
<li>magick/color_lookup.c (struct): Adjust StaticColors definition
to be more const-friendly.</li>
<li>magick/attribute.c: Ajust tag_table definition to be more
const-friendly.</li>
<li>magick/log.c: Allocate LogInfo from heap as we used to do.</li>
<li>magick/locale.c (GetLocaleMessageFromTag): Adaptations to locale
coder output changes.</li>
<li>coders/locale.c (WriteLOCALEImage): Adjust locale coder output
to be more const.</li>
</ul>
</blockquote>
<p>2019-04-20 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/color_lookup.c: Make built-in color tables fully const.</li>
<li>magick/animate.c: Use MagickXTextViewWidgetNDL() to display help
text.</li>
<li>magick/display.c: Use MagickXTextViewWidgetNDL() to display help
text.</li>
<li>magick/widget.c (MagickXTextViewWidgetNDL): New private function
to display multi-line null-delimited text in an X11 widget.</li>
<li>coders/xwd.c (ReadXWDImage): Added even more XWD header
validation logic. Addresses problems noted by email from Hongxu
Chen to the graphicsmagick-security mail alias on Fri, 19 Apr 2019
and Sat, 20 Apr 2019 and entitled "Multiple crashes (FPE and
invalid read) when processing XWD files".</li>
</ul>
</blockquote>
<p>2019-04-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/xwd.c (ReadXWDImage): Added even more XWD header
validation logic. Addresses problems noted by email from Hongxu
Chen to the graphicsmagick-security mail alias on Wed, 17 Apr 2019
and entitled "Multiple crashes (FPE and invalid read) when
processing XWD files". Also addresses additional issues noted
that an attacker could request to allocate an arbitrary amount of
memory based on ncolors and the claimed header size.</li>
</ul>
</blockquote>
<p>2019-04-14 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/xwd.c (ReadXWDImage): Add more XWD header validation
logic. Addresses problems noted by email from Hongxu Chen to the
graphicsmagick-security mail alias on Sun, 14 Apr 2019 and
entitled "Multiple crashes (FPE and invalid read) when processing
XWD files".</li>
</ul>
</blockquote>
<p>2019-04-13 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pdb.c (WritePDBImage): Assure that input scanline is
cleared in order to cover up some decoder bug. May fix 14215
"graphicsmagick/coder_PDB_fuzzer: Use-of-uninitialized-value in
WritePDBImage", which I have not been able to reproduce.</li>
<li>magick/render.c (DrawPrimitive): Check primitive point x/y
values for NaN.
(DrawImage): Fix oss-fuzz issue 14173
"graphicsmagick/coder_MVG_fuzzer: Integer-overflow in DrawImage".</li>
<li>magick/pixel_cache.c (SetNexus): Fix oss-fuzz issue 14208
"graphicsmagick/coder_MVG_fuzzer: Integer-overflow in SetNexus".</li>
</ul>
</blockquote>
<p>2019-04-11 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/display.c: Add even more const declarations.</li>
<li>coders/mat.c (WriteMATLABImage): Add completely missing error
handling. Fixes SourceForge issue #604 "heap-buffer-overflow in
function WriteMATLABImage of coders/mat.c".</li>
</ul>
</blockquote>
<p>2019-04-10 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pdb.c (WritePDBImage): Fix SourceForge issue #605
"heap-buffer-overflow in function WritePDBImage of coders/pdb.c".</li>
<li>magick/widget.c: Add many const declarations.</li>
<li>magick/display.c: Incorporate and eliminate display.h. Add many
const declarations.</li>
<li>magick/animate.c: Incorporate and eliminate animate.h. Add many
const declarations.</li>
</ul>
</blockquote>
<p>2019-04-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/wmf.c (ReadWMFImage): Reject WMF files with an empty
bounding box. Fixes SourceForge issue #606 "Division by Zero in
coders/wmf.c".</li>
</ul>
</blockquote>
<p>2019-04-07 Fojtik Jaroslav <<a class="reference external" href="mailto:JaFojtik%40seznam.cz">JaFojtik<span>@</span>seznam<span>.</span>cz</a>></p>
<blockquote>
<ul class="simple">
<li>magick/nt_base.c Fix a problem of finding ghostscript fonts.
Variable "font_dir" was useless and thus removed. No need to copy
text multiple times. Use const char gs_font_dir[] instead of
pointer.</li>
</ul>
</blockquote>
<p>2019-04-07 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/xwd.c (ReadXWDImage): Perform more header validations and
a file size validation in order to reject files with bogus
headers.
(WriteXWDImage): Fix SourceForge issue #599
"heap_buffer_overflow_WRITE in function WriteXWDImage of
coders/xwd.c".</li>
</ul>
</blockquote>
<p>2019-04-05 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/svg.c (SVGStartElement): Fix stack buffer overflow while
parsing quoted font family value. Fixes SourceForge issue #600
"stack-buffer-overflow in function SVGStartElement of
coders/svg.c".</li>
<li>coders/miff.c (ReadMIFFImage): Detect end of file while reading
RLE packets. Fixes SourceForge issue #598 "heap-buffer-overflow
in function ReadMIFFImage of coders/miff.c".</li>
</ul>
</blockquote>
<p>2019-04-03 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/xwd.c (ReadXWDImage): Fix heap buffer overflow while
reading DirectClass XWD file. Fixes SourceForge issue #597
"heap-buffer-overflow in function ReadXWDImage of coders/xwd.c".</li>
</ul>
</blockquote>
<p>2019-04-02 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (ReadMNGImage): Fix small buffer overflow (one
PixelPacket) of image colormap. Fixes SourceForge issue #596
"heap-buffer-overflow in function CloneImage of magick/image.c".</li>
<li>magick/colormap.c (ReallocateImageColormap): New function to
reallocate an image colormap.</li>
<li>coders/logo.c: Make more static data const.</li>
<li>magick/module_aliases.h: Make more static data const.</li>
<li>magick/static.c: Make more static data const.</li>
</ul>
</blockquote>
<p>2019-04-01 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/log.c (LogMagickEventList): Log elapsed time with
microsecond precision.</li>
</ul>
</blockquote>
<p>2019-03-31 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/mpc.c (ReadMPCImage): Deal with a profile length of zero,
or an irrationally large profile length. Fixes SourceForge issue
#601 "memory leak in function ReadMPCImage of coders/mpc.c ".</li>
<li>magick/xwindow.c (MagickXGetWindowInfo): Deal with the unlikely
case that the memory allocation for window->segment_info
fails. Fixes SourceForge #595 "use allocate memory before null
check" as pertains to magick/xwindow.c.</li>
<li>magick/segment.c (Classify): Add check for memory allocation
failure when allocating cluster array. Fixes SourceForge #595 "use
allocate memory before null check" as pertains to
magick/segment.c.</li>
<li>coders/pdb.c (ReadPDBImage): Fix use of allocated memory before
null check. Fixes SourceForge #595 "use allocate memory before
null check" as pertains to coders/pdb.c.</li>
</ul>
</blockquote>
<p>2019-03-30 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (AllocateThreadViewSet): Simplify the image
view model by adding NexusInfo to the View structure (rather than
referencing it via a pointer) to lessen the number of required
per-thread allocations and to improve locality of reference.</li>
</ul>
</blockquote>
<p>2019-03-22 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/wpg.c (WPG1_Palette): Change to a static declaration.</li>
<li>coders/dcm.c: dicom_info array is now fully in the data segment.</li>
</ul>
</blockquote>
<p>2019-03-18 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>configure.ac: Add support for using the Solaris mtmalloc
library. This is primarily for testing or as an alternative to
Solaris umem.
Stop using posix_memalign() until it is uniformly more mature and
reliably quick.</li>
</ul>
</blockquote>
<p>2019-03-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (SetNexus): Smallest staging-area
allocation is cache line size so declare it as such.</li>
<li>magick/fx.c: Functions in the fx module which return a new Image
should return a null Image if an exception was thrown. Also,
assure that user has an opportunity to see the exception which was
thrown.</li>
<li>magick/error.c (ThrowLoggedException): Throwing an exception is
now thread-safe.</li>
<li>magick/pixel_cache-private.h: Moved pixel cache private
definitions to private header.</li>
</ul>
</blockquote>
<p>2019-03-10 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (SetNexus): Pass x, y, columns, and rows
rather than a pointer to RectangleInfo. This should be easier to
inline on modern CPUs.</li>
</ul>
</blockquote>
<p>2019-03-09 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (SetNexus): Cache resource limits in
CacheInfo rather than repeatedly calling into the resource code in
order to lessen the overhead of performing resource limit checks
on the pixel cache views.</li>
<li>magick/resource.c (AcquireMagickResource): Use a lock for each
resource in order to lessen contention. Return a maximum 64-bit
integer value if the resource has not been limited. Previously
returned -1 in this case but this was not documented.</li>
</ul>
</blockquote>
<p>2019-03-07 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/import.c (ImportViewPixelArea): If range between max and
min is less than MagickEpsilon, produce a black image rather than
throwing an exception.</li>
<li>coders/mat.c (ReadMATImage): Fix memory leak on unexpected end
of file. Fixes oss-fuzz 13556 "graphicsmagick/coder_MAT_fuzzer:
Direct-leak in ReadMATImage". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-03-06 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/mat.c (ReadMATImage): Quit if image scanlines are not
fully populated due to exception. Fixes oss-fuzz 13530
"graphicsmagick/coder_MAT_fuzzer: Use-of-uninitialized-value in
InsertComplexFloatRow". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-03-04 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/txt.c (ReadTXTImage): Don't start new line if x_max <
x_min. Avoids calling SetImagePixels() with a width of zero.
Related to oss-fuzz 13521 "graphicsmagick/coder_TEXT_fuzzer:
Floating-point-exception in SetNexus". (Credit to OSS-Fuzz)</li>
<li>magick/pixel_cache.c (SetNexus): Report error for empty region
rather than crashing due to divide by zero exception. This is a
new bug due to yesterday's changes. Fixes oss-fuzz 13521
"graphicsmagick/coder_TEXT_fuzzer: Floating-point-exception in
SetNexus". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-03-03 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>design/pixel-cache.dot: Update design dot diagram to remove
IsNexusInCore and add CompositeCacheNexus.</li>
<li>magick/pixel_cache.c (SetNexus): Apply resource limits to pixel
nexus allocations using the same limits (total pixels, width,
height, memory) as applied to the whole image since some requests
are directly influenced by the input file. Add yet more tests for
arithmetic overflow. Whole source module is re-arranged so that
static functions are in order of dependency so that forward
prototype declarations are no longer needed. Fixes oss-fuzz 13210
"graphicsmagick/coder_MVG_fuzzer: Integer-overflow in
SetNexus". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-03-02 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (OpenCache): Use unsigned 64-bit value to
store CacheInfo offset and length as well as for the total pixels
calculation. Add some more arithmetic overflow detections.</li>
<li>coders/topol.c (ReadTOPOLImage): Report a corrupt image
exception "Unexpected end-of-file" if reader encounters end of
file while reading header rows. Addresses oss-fuzz 7981
"graphicsmagick/coder_TOPOL_fuzzer: Use-of-uninitialized-value in
InsertRow". (Credit to OSS-Fuzz)</li>
<li>coders/mat.c (ReadMATImage): Report a corrupt image exception
"Unexpected end-of-file" if reader encounters end of file while
reading scanlines. Also added some helpful traces. Hopefully
addresses oss-fuzz 13445 "graphicsmagick/coder_MAT_fuzzer:
Use-of-uninitialized-value in IsGrayImage". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-26 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/image.h ("C"): Include as "magick/image-private.h" as the
other headers are.
("C"): Include "magick/image-private.h" inside the protective
MAGICK_IMPLEMENTATION guard, as it should have been. This error
broke the oss-fuzz build.</li>
</ul>
</blockquote>
<p>2019-02-24 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/image-private.h (_ImageExtra): Put ImageExtra definition
in a private header file so that its definition may be accessed
directly by library internals. Add some accessor macros to
provide access and update code to use them.</li>
<li>coders/wpg.c (ReallocColormap): Make sure that there is not a
heap overwrite if the number of colors has been reduced. Thanks
to Jaroslav Fojtik for giving me a heads up about this.</li>
</ul>
</blockquote>
<p>2019-02-23 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/monitor.c (MagickMonitorActive): Add new private function
to test if a progress monitor is active. Update all progress
monitor code in loops to use this information, while also updating
code to hopefully address concerns expressed by Hongxu Chen about
data races on the graphicsmagick-bugs mailing list starting on
February 6, 2019.</li>
</ul>
</blockquote>
<p>2019-02-21 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/mpc.c (ReadMPCImage): Tally directory length to avoid
death by strlen().</li>
<li>coders/miff.c (ReadMIFFImage): Tally directory length to avoid
death by strlen(). Fixes oss-fuzz 13190
"graphicsmagick/coder_MIFF_fuzzer: Timeout in
graphicsmagick_coder_MIFF_fuzzer". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-17 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/svg.c (ReadSVGImage): Don't call xmlCleanupParser()
in module code since this may cause other libxml users to fail.</li>
<li>coders/msl.c (ProcessMSLScript): Don't call xmlCleanupParser()
in module code since this may cause other libxml users to fail.</li>
<li>magick/render.c (DrawDashPolygon): (DrawDashPolygon): Don't read
beyond end of dash pattern array. This is a second instance of
issue identified by SourceForge issue #591. Fixes oss-fuzz 13160
"graphicsmagick/coder_MVG_fuzzer: Heap-buffer-overflow in
DrawDashPolygon". The earlier attempt to fix this problem today
broke dash patterns entirely. (Credit to OSS-Fuzz)</li>
<li>magick/annotate.c (RenderFreetype): Eliminate memory leak of
GlyphInfo.image (type FT_Glyph) while rendering some FreeType
fonts such as the one we use now in the Magick++ test suite.</li>
</ul>
</blockquote>
<p>2019-02-16 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/render.c (DrawDashPolygon): Avoid reading one beyond
length of dash pattern array, which is terminated by value 0.0.
Fixes SourceForge issue #591 "Heap buffer overflow in
DrawDashPolygon when parsing SVG images".
(DrawPrimitive): Add arithmetic overflow checks when converting
computed coordinates from 'double' to 'long'.
(DrawImage): Don't destroy draw_info in graphic_context when
draw_info has not been allocated yet. Problem reported via email
by Sami Supperi on Thu, 14 Feb 2019.</li>
<li>coders/jpeg.c (ReadJPEGImage): JPEG files are observed to
provide compression ratios as high as 2500 so allow for that.
Also, the test for "Unreasonable dimensions" delivered yesterday
was flawed since magick_rows and magick_columns are only set if a
desired image size was provided. Fixes SourceForge issue 592
"Non-malicious JPEG file fails with "Unreasonable dimensions"".</li>
<li>coders/tiff.c (ReadTIFFImage): Only disassociate alpha channel
for images where photometic is PHOTOMETRIC_RGB. Fixes oss-fuzz
13115 "graphicsmagick/coder_PTIF_fuzzer:
Use-of-uninitialized-value in DisassociateAlphaRegion". (Credit to
OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-15 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/jpeg.c (ReadJPEGImage): Base test for "Unreasonable
dimensions" on original JPEG dimensions and not the scaled
dimensions. Fixes SourceForge issue 593 "gm convert: Insufficient
image data in file when hinting input image".</li>
</ul>
</blockquote>
<p>2019-02-13 Troy Patteson <<a class="reference external" href="mailto:troyp%40ieee.org">troyp<span>@</span>ieee<span>.</span>org</a>></p>
<blockquote>
<ul class="simple">
<li>PerlMagick/Magick.xs (Mogrify): Add decorate argument to Annotate.</li>
<li>PerlMagick/Magick.xs (Mogrify): Remove reference to undefined
Annotate argument.</li>
</ul>
</blockquote>
<p>2019-02-12 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/tiff.c (ReadTIFFImage): For planar TIFF, make sure that
pixels are initialized in case some planes are missing. Fixes
oss-fuzz 13046 "graphicsmagick/coder_PTIF_fuzzer:
Use-of-uninitialized-value in DisassociateAlphaRegion". (Credit to
OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-11 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pdf.c (WritePDFImage): Make sure to free 'xref' before
returning. Similar to ImageMagick CVE-2019-7397 "In ImageMagick
before 7.0.8-25, several memory leaks exist in WritePDFImage in
coders/pdf.c.". Thanks to Petr Gajdos for bringing this issue to
our attention.</li>
</ul>
</blockquote>
<p>2019-02-10 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/wpg.c (ReadWPGImage): Use a different way to reallocate
the colormap which preserves existing content, but also updates
image->colors and assures that added palette entries are
initialized.</li>
<li>coders/png.c (ReadMNGImage): Bound maximum loop iterations by
subrange as a primitive means of limiting resource consumption.
This should finally resolve oss-fuzz 12738
"graphicsmagick/enhance_fuzzer: Out-of-memory in
graphicsmagick_enhance_fuzzer". (Credit to OSS-Fuzz)</li>
<li>coders/tiff.c (ReadTIFFImage): Assure that opacity channel is
initialized in the RGBAStrippedMethod case. Convert
'CorruptImageError' encountered while testing for more frames to
'CorruptImageWarning' so we return the frames already read.
Second try at fixing oss-fuzz 11896
"graphicsmagick/coder_PTIF_fuzzer: Use-of-uninitialized-value in
VerticalFilter".</li>
<li>coders/dpx.c (AttributeToString): Eliminate clang
"-Wstring-plus-int" warning observed in oss-fuzz build.</li>
<li>coders/cineon.c (AttributeToString): Eliminate clang
"-Wstring-plus-int" warning observed in oss-fuzz build.</li>
</ul>
</blockquote>
<p>2019-02-09 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/pict.c (DecodeImage): Avoide a one-byte over-read of
pixels heap allocation. The cause of the over-read is not yet
understood. Fixes oss-fuzz 12019
"graphicsmagick/coder_PICT_fuzzer: Heap-buffer-overflow in
ExpandBuffer". (Credit to OSS-Fuzz)</li>
<li>coders/wpg.c (ReadWPGImage): Assure that all colormap entries
are initialized. Fixes oss-fuzz 12614
"graphicsmagick/enhance_fuzzer: Use-of-uninitialized-value in
EnhanceImage". (Credit to OSS-Fuzz)</li>
<li>coders/tiff.c (ReadTIFFImage): Make sure that image is in
DirectClass mode and ignore any claimed colormap when the image is
read using the RGBAStrippedMethod, RGBATiledMethod, or
RGBAPuntMethod cases. Fixes oss-fuzz 12195
"graphicsmagick/coder_PTIF_fuzzer: Use-of-uninitialized-value in
ExportGrayQuantumType". (Credit to OSS-Fuzz)</li>
<li>coders/miff.c (ReadMIFFImage): Improve pixel buffer calculations
to defend against overflow. Assure that zlib and bzlib decode the
expected number of bytes for a pixel row. Fixes oss-fuzz issue
12448 "graphicsmagick/coder_MIFF_fuzzer:
Use-of-uninitialized-value in RGBTransformPackets". (Credit to
OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-08 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/png.c (ReadMNGImage): Quit processing and report error
upon failure to insert MNG background layer. Fixes oss-fuzz 12738
"graphicsmagick/enhance_fuzzer: Out-of-memory in
graphicsmagick_enhance_fuzzer". (Credit to OSS-Fuzz)</li>
</ul>
</blockquote>
<p>2019-02-03 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/dib.c (ReadDIBImage, WriteDIBImage): Improve buffer-size
calculations to guard against buffer overflows. The reader
version was not as complete as it should have been, whereas the
writer version did not guard against arithmetic overflow at all.</li>
<li>coders/bmp.c (ReadBMPImage, WriteBMPImage): Improve buffer-size
calculations to guard against buffer overflows. This is a
follow-on fix to the previous fix submitted for SourceForge issue
#582 "heap-buffer-overflow in ReadBMPImage of bmp.c" which is now
also identified as CVE-2018-20185.</li>
<li>www/Hg.rst: Updates to reflect current usage and availability.</li>
<li>www/authors.rst: Promote Troy Patteson to the active contributor
category.</li>
</ul>
</blockquote>
<p>2019-02-01 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/version.h.in: Rotate ChangeLog and update copyright
statements for the new year.</li>
</ul>
</blockquote>
<p>2019-01-30 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>coders/webp.c (WriteWEBPImage): Patch by Przemysław Sobala to
support WebP 'use_sharp_yuv' option ("if needed, use sharp (and
slow) RGB->YUV conversion") via <cite>-define webp:use-sharp-yuv=true</cite>.</li>
</ul>
</blockquote>
<p>2019-01-05 Bob Friesenhahn <<a class="reference external" href="mailto:bfriesen%40simple.dallas.tx.us">bfriesen<span>@</span>simple<span>.</span>dallas<span>.</span>tx<span>.</span>us</a>></p>
<blockquote>
<ul class="simple">
<li>magick/pixel_cache.c (SetNexus): Merge IsNexusInCore()
implementation code into SetNexus() and add check for if
cache_info->pixels is null. Fixes SourceForge issue #588 "Bug in
IsNexusInCore()".</li>
<li>configure.ac (DcrawExtraOptions): Request TIFF output from dcraw
if build supports TIFF format in order to obtain more metadata.
This allows obtaining some metadata from standard TIFF tags
(e.g. camera make, model, and dcraw version), and any attached ICC
profile, but not specifically EXIF data since we don't support
extracting EXIF data from TIFF yet. Inspired by SourceForge issue
589 "Identify lack of data (no Exif) in RAW formats".</li>
</ul>
</blockquote>
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