*** This bug is a security vulnerability ***
Public security bug reported:
This bug was found while fuzzing ImageMagick with afl-fuzz
Tested on ImageMagick git commit
26ac8585e46188a648abf5fa3a1a7d264d8b3cb9
Command: magick id:000362,sig:06,src:008726,op:havoc,rep:4 /dev/null
=================================================================
==21178==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb5400000 at
pc 0x80b2652 bp 0xbfd31558 sp 0xbfd31548
READ of size 66048 at 0xb5400000 thread T0
#0 0x80b2651 in memmove (/usr/local/bin/magick+0x80b2651)
#1 0x814f6d8 in CopyMagickMemory
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/memory.c:719
#2 0x86668f6 in RemoveICCProfileFromResourceBlock
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/coders/psd.c:2569
#3 0x86668f6 in WritePSDImage
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/coders/psd.c:2779
#4 0x89633b8 in WriteImage
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:1091
#5 0x8966d9c in WriteImages
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/constitute.c:1309
#6 0x9230a7f in CLINoImageOperator
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:4730
#7 0x9238891 in CLIOption
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/operation.c:5190
#8 0x8fc3893 in ProcessCommandOptions
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:526
#9 0x8fc5d15 in MagickImageCommand
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:786
#10 0x8fca1f9 in MagickCommandGenesis
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/mogrify.c:172
#11 0x80ddf3d in MagickMain
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/utilities/magick.c:74
#12 0x80ddf3d in main
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/utilities/magick.c:85
#13 0xb74dca82 in __libc_start_main
/build/eglibc-617sU_/eglibc-2.19/csu/libc-start.c:287
#14 0x80ddd64 in _start (/usr/local/bin/magick+0x80ddd64)
0xb5400000 is located 256 bytes to the left of 4172-byte region
[0xb5400100,0xb540114c)
allocated by thread T0 here:
#0 0x80c6991 in malloc (/usr/local/bin/magick+0x80c6991)
#1 0x814e958 in AcquireMagickMemory
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickCore/memory.c:476
#2 0x8fc4b55 in MagickImageCommand
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/magick-cli.c:693
#3 0x8fca1f9 in MagickCommandGenesis
/home/user/Desktop/FuzzImageMagick-master/ImageMagick/MagickWand/mogrify.c:172
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 memmove
Shadow bytes around the buggy address:
0x36a7ffb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a7ffc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a7ffd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a7ffe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a7fff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x36a80000:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a80010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a80020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a80030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a80040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36a80050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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
==21178==ABORTING
** Affects: imagemagick (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1553360
Title:
out-of-bounds read in MagickCore/memory.c:719
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