[Bug 1547287] Re: out-of-bounds read in MagickCore/xml-tree.c:1394

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** Changed in: imagemagick
       Status: Unknown => Fix Released

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Title:
  out-of-bounds read in MagickCore/xml-tree.c:1394

Status in ImageMagick:
  Fix Released
Status in imagemagick package in Ubuntu:
  Fix Released

Bug description:
  This bug was found while fuzzing ImageMagick with afl-fuzz

  Tested on ImageMagick git commit
  07b9f5ed90ce1e2d723837979446713b2159f78e

  Command: magick id:000323,sig:06,src:007647,op:havoc,rep:64 /dev/null

  =================================================================
  ==5369==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb2e03bf4 at pc 0x8399d51 bp 0xbfe950b8 sp 0xbfe950b0
  READ of size 1 at 0xb2e03bf4 thread T0
      #0 0x8399d50 in ParseEntities /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/xml-tree.c:1394
      #1 0x838b8a4 in NewXMLTree /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/xml-tree.c:2093
      #2 0x824e5f0 in GetXMPProperty /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/property.c:1661
      #3 0x824e5f0 in GetImageProperty /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/property.c:2149
      #4 0x828cd04 in SetImageProfileInternal /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1671
      #5 0x828cb1d in GetProfilesFromResourceBlock /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1574
      #6 0x828cb1d in SetImageProfileInternal /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1663
      #7 0x828a72c in SetImageProfile /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1678
      #8 0x85a40d4 in ReadMETAImage /home/user/Desktop/FuzzImageMagick-master/ImageMagick/coders/meta.c:1217
      #9 0x8a802aa in ReadImage /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:494
      #10 0x8a8811f in ReadImages /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:844
      #11 0x936a649 in CLINoImageOperator /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:4680
      #12 0x9372b31 in CLIOption /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:5174
      #13 0x90ffc8d in ProcessCommandOptions /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:474
      #14 0x9103005 in MagickImageCommand /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:786
      #15 0x91074e9 in MagickCommandGenesis /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/mogrify.c:172
      #16 0x80dde9d in MagickMain /home/user/Desktop/FuzzImageMagick-master/ImageMagick/utilities/magick.c:74
      #17 0x80dde9d in main /home/user/Desktop/FuzzImageMagick-master/ImageMagick/utilities/magick.c:85
      #18 0xb74baa82 in __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287
      #19 0x80ddcc4 in _start (/usr/local/bin/magick+0x80ddcc4)

  0xb2e03bf4 is located 0 bytes to the right of 164-byte region [0xb2e03b50,0xb2e03bf4)
  allocated by thread T0 here:
      #0 0x80c68f1 in malloc (/usr/local/bin/magick+0x80c68f1)
      #1 0x81885f9 in AcquireMagickMemory /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/memory.c:476
      #2 0x81885f9 in AcquireQuantumMemory /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/memory.c:549
      #3 0x828cd04 in SetImageProfileInternal /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1671
      #4 0x828cb1d in GetProfilesFromResourceBlock /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1574
      #5 0x828cb1d in SetImageProfileInternal /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1663
      #6 0x828a72c in SetImageProfile /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/profile.c:1678
      #7 0x8a802aa in ReadImage /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:494
      #8 0x8a8811f in ReadImages /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:844
      #9 0x936a649 in CLINoImageOperator /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:4680
      #10 0x9372b31 in CLIOption /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:5174
      #11 0x90ffc8d in ProcessCommandOptions /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:474

  SUMMARY: AddressSanitizer: heap-buffer-overflow /home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/xml-tree.c:1394 ParseEntities
  Shadow bytes around the buggy address:
    0x365c0720: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c0730: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c0740: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c0750: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c0760: fa fa fa fa fa fa fa fa fa fa 00 00 00 00 00 00
  =>0x365c0770: 00 00 00 00 00 00 00 00 00 00 00 00 00 00[04]fa
    0x365c0780: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c0790: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c07a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c07b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x365c07c0: 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
  ==5369==ABORTING

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