A memory leak vulnerability was found in function ReadMATImage in coders/mat.c ,which allow attackers to cause a denial of service via a crafted file.
#./identify $FILE
=================================================================
==106216==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 13488 byte(s) in 1 object(s) allocated from:
#0 0x4ec5a6 in __interceptor_malloc /home/test/Downloads/llvm-clang/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:66
#1 0x527f7c in AcquireImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/image.c:169:19
#2 0x8da29b in decompress_block /home/test/Downloads/IM-afl/ImageMagick-master/coders/mat.c:570:17
#3 0x8da29b in ReadMATImage /home/test/Downloads/IM-afl/ImageMagick-master/coders/mat.c:966
#4 0xdf8370 in ReadImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/constitute.c:497:13
#5 0x133293d in ReadStream /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/stream.c:1045:9
#6 0xdf6f15 in PingImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/constitute.c:226:9
#7 0x1675c56 in IdentifyImageCommand /home/test/Downloads/IM-afl/ImageMagick-master/MagickWand/identify.c:319:18
#8 0x174b360 in MagickCommandGenesis /home/test/Downloads/IM-afl/ImageMagick-master/MagickWand/mogrify.c:183:14
#9 0x522919 in MagickMain /home/test/Downloads/IM-afl/ImageMagick-master/utilities/magick.c:149:10
#10 0x522919 in main /home/test/Downloads/IM-afl/ImageMagick-master/utilities/magick.c:180
#11 0x7f1676664b34 in __libc_start_main /usr/src/debug/glibc-2.17-c758a686/csu/../csu/libc-start.c:274
Indirect leak of 13024 byte(s) in 1 object(s) allocated from:
#0 0x4ec5a6 in __interceptor_malloc /home/test/Downloads/llvm-clang/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:66
#1 0x52c705 in AcquireImageInfo /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/image.c:347:28
#2 0x52934d in AcquireImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/image.c:290:10
#3 0x8da29b in decompress_block /home/test/Downloads/IM-afl/ImageMagick-master/coders/mat.c:570:17
#4 0x8da29b in ReadMATImage /home/test/Downloads/IM-afl/ImageMagick-master/coders/mat.c:966
#5 0xdf8370 in ReadImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/constitute.c:497:13
#6 0x133293d in ReadStream /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/stream.c:1045:9
#7 0xdf6f15 in PingImage /home/test/Downloads/IM-afl/ImageMagick-master/MagickCore/constitute.c:226:9
#8 0x1675c56 in IdentifyImageCommand /home/test/Downloads/IM-afl/ImageMagick-master/MagickWand/identify.c:319:18
#9 0x174b360 in MagickCommandGenesis /home/test/Downloads/IM-afl/ImageMagick-master/MagickWand/mogrify.c:183:14
#10 0x522919 in MagickMain /home/test/Downloads/IM-afl/ImageMagick-master/utilities/magick.c:149:10
#11 0x522919 in main /home/test/Downloads/IM-afl/ImageMagick-master/utilities/magick.c:180
#12 0x7f1676664b34 in __libc_start_main /usr/src/debug/glibc-2.17-c758a686/csu/../csu/libc-start.c:274
......
46393 byte(s) leaked in 21 allocation(s).
Version: ImageMagick 7.0.7-1 Q16 x86_64
A memory leak vulnerability was found in function ReadMATImage in coders/mat.c ,which allow attackers to cause a denial of service via a crafted file.
testcase:https://github.com/bestshow/p0cs/blob/master/memory_leak_in_ReadMATImage966_x.mat
Credit:ADLab of Venustech
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