Closed
Description
Prerequisites
- I have written a descriptive issue title
- I have verified that I am using the latest version of ImageMagick
- I have searched open and closed issues to ensure it has not already been reported
Description
I used fuzz technology to fuzz the imagemagick and found a heap overflow bug.
Steps to Reproduce
- download_the_poc
- use the command
./magick convert $POC /dev/null - Address Sanitizer reports the message like:
==9317==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xb5303595 at pc 0x80507ad bp 0xbfb13c58 sp 0xbfb13c4c
READ of size 1 at 0xb5303595 thread T0
#0 0x80507ac in PushShortPixel MagickCore/quantum-private.h:276
#1 0x80507ac in ParseImageResourceBlocks coders/psd.c:818
#2 0x855f506 in ReadPSDImage coders/psd.c:2268
#3 0x8793939 in ReadImage MagickCore/constitute.c:542
#4 0x87971d5 in ReadImages MagickCore/constitute.c:911
#5 0x8d67732 in ConvertImageCommand MagickWand/convert.c:643
#6 0x8e6a5a0 in MagickCommandGenesis MagickWand/mogrify.c:184
#7 0x8079d1b in MagickMain utilities/magick.c:149
#8 0x805a8fa in main utilities/magick.c:180
#9 0xb6ff0af2 in __libc_start_main (/lib/i386-linux-gnu/libc.so.6+0x19af2)
#10 0x8079382 (/home/afl/ImageMagick/utilities/magick+0x8079382)
0xb5303595 is located 0 bytes to the right of 21-byte region [0xb5303580,0xb5303595)
allocated by thread T0 here:
#0 0xb728788a in __interceptor_malloc (/usr/lib/i386-linux-gnu/libasan.so.1+0x4e88a)
#1 0x855e7a8 in ReadPSDImage coders/psd.c:2257
SUMMARY: AddressSanitizer: heap-buffer-overflow MagickCore/quantum-private.h:276 PushShortPixel
Shadow bytes around the buggy address:
0x36a60660: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a60670: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a60680: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a60690: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36a606a0: fa fa fa fa 00 00 01 fa fa fa 00 00 04 fa fa fa
=>0x36a606b0: 00 00[05]fa fa fa fd fd fd fd fa fa fd fd fd fd
0x36a606c0: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
0x36a606d0: fd fd fa fa fd fd fd fd fa fa fd fd fd fd fa fa
0x36a606e0: fd fd fd fd fa fa fd fd fd fd fa fa fd fd fd fd
0x36a606f0: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
0x36a60700: fd fd fa fa fd fd fd fd fa fa fd fd fd fd 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
Contiguous container OOB:fc
ASan internal: fe
==9317==ABORTING
System Configuration
-
ImageMagick version:
Version: ImageMagick 7.0.8-11 Q16 i686 2018-08-16 https://www.imagemagick.org
Copyright: © 1999-2018 ImageMagick Studio LLC
License: https://www.imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP
Delegates (built-in): -
Environment (Operating system, version and so on):
Ubuntu 14.04 LTS x86 arch
$ uname -a
Linux ubuntu 4.4.0-31-generic #50~14.04.1-Ubuntu SMP Wed Jul 13 01:06:37 UTC 2016 i686 i686 i686 GNU/Linux
- Additional information:
May I know whether this can be assigned with a CVE ID?