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Message-ID: <11716477.MTzBsLzZIC@arcadia> Date: Sat, 08 Oct 2016 22:06:26 +0200 From: Agostino Sarubbo <ago@...too.org> To: oss-security@...ts.openwall.com Subject: imagemagick: memory allocate failure in AcquireQuantumPixels (quantum.c) Description: imagemagick is a software suite to create, edit, compose, or convert bitmap images. A fuzzing with the upstream security policy enabled revealed a memory allocate failure. The complete ASan output: # identify $FILE ==25084==WARNING: AddressSanitizer failed to allocate 0x46bf39483ac bytes ==25084==AddressSanitizer's allocator is terminating the process instead of returning 0 ==25084==If you don't like this behavior set allocator_may_return_null=1 ==25084==AddressSanitizer CHECK failed: /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/sanitizer_common/sanitizer_allocator.cc:147 "((0)) != (0)" (0x0, 0x0) #0 0x4c9f9d in AsanCheckFailed /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_rtl.cc:67 #1 0x4d0ad3 in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/sanitizer_common/sanitizer_common.cc:159 #2 0x4ce826 in __sanitizer::ReportAllocatorCannotReturnNull() /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/sanitizer_common/sanitizer_allocator.cc:147 #3 0x421bfc in __sanitizer::CombinedAllocator<__sanitizer::SizeClassAllocator64<105553116266496ul, 4398046511104ul, 0ul, __sanitizer::SizeClassMap, __asan::AsanMapUnmapCallback>, __sanitizer::SizeClassAllocatorLocalCache<__sanitizer::SizeClassAllocator64<105553116266496ul, 4398046511104ul, 0ul, __sanitizer::SizeClassMap, __asan::AsanMapUnmapCallback> >, __sanitizer::LargeMmapAllocator >::ReturnNullOrDie() /var/tmp/portage/sys- devel/llvm-3.8.1-r2/work/llvm-3.8.1.src/projects/compiler- rt/lib/asan/../sanitizer_common/sanitizer_allocator.h:1317 #4 0x421bfc in __asan::Allocator::Allocate(unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType, bool) /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_allocator.cc:359 #5 0x421bfc in __asan::asan_malloc(unsigned long, __sanitizer::BufferedStackTrace*) /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_allocator.cc:718 #6 0x4c0661 in malloc /var/tmp/portage/sys-devel/llvm-3.8.1- r2/work/llvm-3.8.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:53 #7 0x7f76c7533ff4 in AcquireQuantumPixels /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/quantum.c:175:47 #8 0x7f76c7533ff4 in SetQuantumDepth /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/quantum.c:693 #9 0x7f76c7532676 in AcquireQuantumInfo /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/quantum.c:125:10 #10 0x7f76baf3607e in ReadTIFFImage /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/coders/tiff.c:1431:18 #11 0x7f76c7067b12 in ReadImage /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/constitute.c:496:13 #12 0x7f76c77ff406 in ReadStream /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/stream.c:1012:9 #13 0x7f76c70665ca in PingImage /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/constitute.c:226:9 #14 0x7f76c7066e25 in PingImages /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickCore/constitute.c:326:10 #15 0x7f76c68ec4c3 in IdentifyImageCommand /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickWand/identify.c:319:18 #16 0x7f76c698226a in MagickCommandGenesis /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/MagickWand/mogrify.c:183:14 #17 0x4f1fb5 in MagickMain /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/utilities/magick.c:145:10 #18 0x4f1fb5 in main /tmp/portage/media- gfx/imagemagick-7.0.3.0/work/ImageMagick-7.0.3-0/utilities/magick.c:176 #19 0x7f76c582661f in __libc_start_main /var/tmp/portage/sys- libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 #20 0x419138 in _init (/usr/bin/magick+0x419138) Affected version: 7.0.3.0 Fixed version: 7.0.3.1 Commit fix: https://github.com/ImageMagick/ImageMagick/commit/6e48aa92ff4e6e95424300ecd52a9ea453c19c60 Credit: This bug was discovered by Agostino Sarubbo of Gentoo. CVE: N/A Timeline: 2016-09-14: bug discovered 2016-09-14: bug reported to upstream 2016-09-16: upstream released a patch 2016-09-21: upstream released 7.0.3.1 2016-10-07: blog post about the issue Note: This bug was found with American Fuzzy Lop. Permalink: https://blogs.gentoo.org/ago/2016/10/07/imagemagick-memory-allocate-failure-in-acquirequantumpixels-quantum-c/
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