*** This bug is a security vulnerability ***
Public security bug reported:
=================================================================
==19714==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb2f02be0 at
pc 0x85b330e bp 0xbfa4eb88 sp 0xbfa4eb80
READ of size 1 at 0xb2f02be0 thread T0
#0 0x85b330d in parse8BIM /home/user/Desktop/ImageMagick/coders/meta.c:496
#1 0x85b330d in ReadMETAImage
/home/user/Desktop/ImageMagick/coders/meta.c:1201
#2 0x8a9438a in ReadImage
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:494
#3 0x8a9c1ff in ReadImages
/home/user/Desktop/ImageMagick/MagickCore/constitute.c:844
#4 0x9371649 in CLINoImageOperator
/home/user/Desktop/ImageMagick/MagickWand/operation.c:4663
#5 0x9379b31 in CLIOption
/home/user/Desktop/ImageMagick/MagickWand/operation.c:5157
#6 0x910713d in ProcessCommandOptions
/home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:474
#7 0x910a4b5 in MagickImageCommand
/home/user/Desktop/ImageMagick/MagickWand/magick-cli.c:786
#8 0x910e999 in MagickCommandGenesis
/home/user/Desktop/ImageMagick/MagickWand/mogrify.c:172
#9 0x80de12d in MagickMain
/home/user/Desktop/ImageMagick/utilities/magick.c:74
#10 0x80de12d in main /home/user/Desktop/ImageMagick/utilities/magick.c:85
#11 0xb74a7a82 in __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:287
#12 0x80ddf54 in _start (/usr/local/bin/magick+0x80ddf54)
0xb2f02be0 is located 0 bytes to the right of 144-byte region
[0xb2f02b50,0xb2f02be0)
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
/home/user/Desktop/ImageMagick/coders/meta.c:496 parse8BIM
Shadow bytes around the buggy address:
0x365e0520: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365e0530: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365e0540: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365e0550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x365e0560: 00 00 fa fa fa fa fa fa fa fa 00 00 00 00 00 00
=>0x365e0570: 00 00 00 00 00 00 00 00 00 00 00 00[fa]fa fa fa
0x365e0580: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x365e0590: fd fd fd fd fd fd fa fa fa fa fa fa fa fa fd fd
0x365e05a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x365e05b0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x365e05c0: fd fd fd fd fd fd fd fd fd fd 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
==19714==ABORTING
** Affects: imagemagick (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1537420
Title:
heap-buffer-overflow in coders/meta.c:496
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1537420/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
