*** This bug is a security vulnerability *** Public security bug reported:
This bug was found while fuzzing ImageMagick with afl-fuzz Tested on ImageMagick version d8382f9c0ffa52057271a6a323e7e062f0fe4ff6 Command: magick infile /dev/null Build info: #Configure command: CC=afl-clang-fast CXX=afl-clang-fast++ ./configure --with-bzlib=no --with-djvu=no --with-dps=no --with-fftw=no --with-fpx=no --with-fontconfig=no --with-freetype=no --with-gvc=no --with-jbig=no --with-jpeg=no --with-lcms=no --with-lqr=no --with-ltdl=no --with-lzma=no --with-openexr=no --with-openjp2=no --with-pango=no --with-png=no --with-tiff=no --with-wmf=no --with-x=no --with-xml=no --with-zlib=no --enable-hdri=no --enable-shared=no #Make command: CC=afl-clang-fast CXX=afl-clang-fast++ make ASAN output: ================================================================= ==20581==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb480485c at pc 0x886f19e bp 0xbf8c63a8 sp 0xbf8c63a0 READ of size 4 at 0xb480485c thread T0 #0 0x886f19d in ReadVIFFImage /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/viff.c:445 #1 0x8a8b97a in ReadImage /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:494 #2 0x8a937ef in ReadImages /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:844 #3 0x93754a9 in CLINoImageOperator /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:4663 #4 0x937d98f in CLIOption /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:5157 #5 0x910afad in ProcessCommandOptions /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:474 #6 0x910e325 in MagickImageCommand /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:786 #7 0x9112809 in MagickCommandGenesis /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/mogrify.c:172 #8 0x80de10d in MagickMain /home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:74 #9 0x80de10d in main /home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:85 #10 0xb7549a82 in __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 #11 0x80ddf34 in _start (/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick+0x80ddf34) 0xb480485c is located 0 bytes to the right of 60-byte region [0xb4804820,0xb480485c) allocated by thread T0 here: #0 0x80c6b61 in malloc (/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick+0x80c6b61) #1 0x81939e9 in AcquireMagickMemory /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/memory.c:463 #2 0x81939e9 in AcquireQuantumMemory /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/memory.c:539 #3 0x8a8b97a in ReadImage /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:494 #4 0x8a937ef in ReadImages /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:844 #5 0x93754a9 in CLINoImageOperator /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:4663 #6 0x937d98f in CLIOption /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:5157 #7 0x910afad in ProcessCommandOptions /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:474 SUMMARY: AddressSanitizer: heap-buffer-overflow /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/viff.c:445 ReadVIFFImage Shadow bytes around the buggy address: 0x369008b0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00 0x369008c0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04 0x369008d0: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa 0x369008e0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00 0x369008f0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04 =>0x36900900: fa fa fa fa 00 00 00 00 00 00 00[04]fa fa fa fa 0x36900910: 00 00 00 00 00 00 00 fa fa fa fa fa 00 00 00 00 0x36900920: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04 0x36900930: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa 0x36900940: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00 0x36900950: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 ASan internal: fe ==20581==ABORTING ** Affects: imagemagick (Ubuntu) Importance: Undecided Status: New ** Attachment added: "viff.c_445" https://bugs.launchpad.net/bugs/1533452/+attachment/4548913/+files/id%3A000071%2Csig%3A06%2Csrc%3A002008%2Cop%3Aflip1%2Cpos%3A580 ** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1533452 Title: out-of-bounds read in coders/psd.c:797 ReadPSDChannelPixels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1533452/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs