Heap-based buffer overflow in the WPG format reader in GraphicsMagick 1.3.25 and earlier allows remote attackers to have unspecified impact via a colormap with a large number of entries.

The ReadPCXImage function in coders/pcx.c in GraphicsMagick 1.3.25 allows remote attackers to have unspecified impact via a crafted image, which triggers a memory allocation failure and a "file truncation error for corrupt file."

The MagickMalloc function in magick/memory.c in GraphicsMagick 1.3.25 allows remote attackers to have unspecified impact via a crafted image, which triggers a memory allocation failure and a "file truncation error for corrupt file."

Multiple issues in GraphicsMagick received CVEs on oss-security mailing list.

CVE-2016-8682:

https://blogs.gentoo.org/ago/2016/09/15/graphicsmagick-stack-based-buffer-overflow-in-readsctimage-sct-c/

AddressSanitizer: stack-buffer-overflow ... READ of size 769 0x7f73e9a8399f in ReadSCTImage ... GraphicsMagick-1.3.25/coders/sct.c:126

Upstream patch:

http://hg.code.sf.net/p/graphicsmagick/code/rev/0a0dfa81906d

CVE-2016-8683:

https://blogs.gentoo.org/ago/2016/09/15/graphicsmagick-memory-allocation-failure-in-readpcximage-pcx-c/

AddressSanitizer failed to allocate 0x4cd6a6000 bytes of LargeMmapAllocator 0x7ff8e887beba in ReadPCXImage ... GraphicsMagick-1.3.25/coders/pcx.c:467:16

Upstream patch:

http://hg.code.sf.net/p/graphicsmagick/code/rev/b9edafd479b9

CVE-2016-8684:

https://blogs.gentoo.org/ago/2016/09/15/graphicsmagick-memory-allocation-failure-in-magickmalloc-memory-c/

AddressSanitizer failed to allocate 0x7fff03000 bytes of LargeMmapAllocator MagickMalloc ... GraphicsMagick-1.3.25/magick/memory.c:156:10 MagickMallocArray ... GraphicsMagick-1.3.25/magick/memory.c:347 ReadSGIImage ... GraphicsMagick-1.3.25/coders/sgi.c:498:19

Upstream patch:

http://hg.code.sf.net/p/graphicsmagick/code/rev/c53725cb5449

An unsigned overflow leading to heap buffer overflow vulnerability was found in GraphicsMagick 8BIM reader. A maliciously crafted file could cause the application to crash.

References:

http://seclists.org/oss-sec/2016/q4/0

Upstream patch:

https://sourceforge.net/p/graphicsmagick/code/ci/5c7b6d6094a25e99c57f8b18343914ebfd8213ef/

The WPG format reader in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service (assertion failure and crash) via vectors related to a ReferenceBlob and a NULL pointer.

A memory allocation failure was discovered in GraphicsMagick in MagickRealloc in memory.c

References:

http://seclists.org/oss-sec/2016/q4/586 https://blogs.gentoo.org/ago/2016/12/01/graphicsmagick-memory-allocation-failure-in-magickrealloc-memory-c

ImageMagick and GraphicsMagick encounter a read beyond an allocated heap buffer when reading CMYKA TIFF files which claim to offer fewer samples per pixel than required. A maliciously crafted file could cause the application to crash.

References:

http://seclists.org/oss-sec/2017/q1/494

Upstream patch:

https://sourceforge.net/p/graphicsmagick/code/ci/6156b4c2992d855ece6079653b3b93c3229fc4b8/

Last updated 25 August 2025

Last updated 25 August 2025