*** This bug is a security vulnerability ***
Public security bug reported:
=================================================================
==19704==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb5b071f1 at
pc 0x808ca48 bp 0xbfd95848 sp 0xbfd95838
READ of size 2 at 0xb5b071f1 thread T0
#0 0x808ca47 in strncasecmp (/usr/local/bin/magick+0x808ca47)
#1 0x815af14 in LocaleNCompare
/home/user/Desktop/ImageMagick/MagickCore/locale.c:1517
#2 0x8759991 in ReadPSDImage
/home/user/Desktop/ImageMagick/coders/psd.c:1940
#3 0x8a9438a in ReadImage
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:494
#4 0x8a9c1ff in ReadImages
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:844
#5 0x9371649 in CLINoImageOperator
/home/user/Desktop/ImageMagick/MagickWand/operation.c:4663
#6 0x9379b31 in CLIOption
/home/user/Desktop/ImageMagick/MagickWand/operation.c:5157
#7 0x910713d in ProcessCommandOptions
/home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:474
#8 0x910a4b5 in MagickImageCommand
/home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:786
#9 0x910e999 in MagickCommandGenesis
/home/user/Desktop/ImageMagick/MagickWand/mogrify.c:172
#10 0x80de12d in MagickMain
/home/user/Desktop/ImageMagick/utilities/magick.c:74
#11 0x80de12d in main /home/user/Desktop/ImageMagick/utilities/magick.c:85
#12 0xb7472a82 in __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:287
#13 0x80ddf54 in _start (/usr/local/bin/magick+0x80ddf54)
0xb5b071f1 is located 0 bytes to the right of 1-byte region
[0xb5b071f0,0xb5b071f1)
allocated by thread T0 here:
#0 0x80c6b81 in malloc (/usr/local/bin/magick+0x80c6b81)
#1 0x81932f9 in AcquireMagickMemory
/home/user/Desktop/ImageMagick/MagickCore/memory.c:475
#2 0x81932f9 in AcquireQuantumMemory
/home/user/Desktop/ImageMagick/MagickCore/memory.c:548
#3 0x8a9438a in ReadImage
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:494
#4 0x8a9c1ff in ReadImages
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:844
#5 0x9371649 in CLINoImageOperator
/home/user/Desktop/ImageMagick/MagickWand/operation.c:4663
#6 0x9379b31 in CLIOption
/home/user/Desktop/ImageMagick/MagickWand/operation.c:5157
#7 0x910713d in ProcessCommandOptions
/home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:474
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strncasecmp
Shadow bytes around the buggy address:
0x36b60de0: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
0x36b60df0: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
0x36b60e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36b60e10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36b60e20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x36b60e30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa[01]fa
0x36b60e40: fa fa 00 00 fa fa 00 01 fa fa fd fd fa fa fd fd
0x36b60e50: fa fa 00 fa fa fa fd fd fa fa fd fd fa fa 00 fa
0x36b60e60: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
0x36b60e70: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
0x36b60e80: fa fa 00 fa fa fa 00 fa fa fa 00 fa fa fa 00 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
==19704==ABORTING
** Affects: imagemagick (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1537419
Title:
heap-buffer-overflow in MagickCore/locale.c:1517
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