Public 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: ==6043==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb5b07eb9 at pc 0x877cbcb bp 0xbfccb058 sp 0xbfccb050 READ of size 1 at 0xb5b07eb9 thread T0 #0 0x877cbca in ReadPSDChannelPixels /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/psd.c:797:13 #1 0x8776ccb in ReadPSDChannelRaw /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/psd.c:925 #2 0x875eb8f in ReadPSDMergedImage /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/psd.c:1728 #3 0x875eb8f in ReadPSDImage /home/user/Desktop/imagemagick_reporting/ImageMagick/coders/psd.c:1994 #4 0x8a8b97a in ReadImage /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:494 #5 0x8a937ef in ReadImages /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickCore/constitute.c:844 #6 0x93754a9 in CLINoImageOperator /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:4663 #7 0x937d98f in CLIOption /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/operation.c:5157 #8 0x910afad in ProcessCommandOptions /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:474 #9 0x910e325 in MagickImageCommand /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/magick-cli.c:786 #10 0x9112809 in MagickCommandGenesis /home/user/Desktop/imagemagick_reporting/ImageMagick/MagickWand/mogrify.c:172 #11 0x80de10d in MagickMain /home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:74 #12 0x80de10d in main /home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick.c:85 #13 0xb748ca82 in __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 #14 0x80ddf34 in _start (/home/user/Desktop/imagemagick_reporting/ImageMagick/utilities/magick+0x80ddf34) 0xb5b07eb9 is located 0 bytes to the right of 9-byte region [0xb5b07eb0,0xb5b07eb9) 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/psd.c:797 ReadPSDChannelPixels Shadow bytes around the buggy address: 0x36b60f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b60f90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b60fa0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b60fb0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b60fc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x36b60fd0: fa fa fa fa fa fa 00[01]fa fa 00 00 fa fa 00 01 0x36b60fe0: fa fa fd fd fa fa fd fd fa fa 00 fa fa fa fd fd 0x36b60ff0: fa fa fd fd fa fa 00 fa fa fa 00 fa fa fa 00 fa 0x36b61000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b61010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x36b61020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 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 ** Affects: imagemagick (Ubuntu) Importance: Undecided Status: New ** Attachment added: "psd.c_797" https://bugs.launchpad.net/bugs/1533442/+attachment/4548907/+files/id%3A000017%2Csig%3A06%2Csrc%3A000431%2Cop%3Aarith8%2Cpos%3A23%2Cval%3A-7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1533442 Title: heap-buffer-overflow in coders/psd.c:797 ReadPSDChannelPixels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1533442/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs