out-of-bounds write in coders/psd.c:892
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
graphicsmagick (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
This bug was found while fuzzing graphicsmagick with afl-fuzz
Tested on hg changeset 14720:3b1f1e0c1098
Command: gm convert id:000068,
=======
==32081==ERROR: AddressSanitizer: heap-buffer-
WRITE of size 4 at 0xb3c03e68 thread T0
#0 0x88a21f6 in ReadPSDImage /home/user/
#1 0x8244d62 in ReadImage /home/user/
#2 0x812c3ac in ConvertImageCommand /home/user/
#3 0x8165066 in MagickCommand /home/user/
#4 0x81ed0dc in GMCommandSingle /home/user/
#5 0x81ea204 in GMCommand /home/user/
#6 0x80d4a76 in main /home/user/
#7 0xb7549a82 in __libc_start_main /build/
#8 0x80d4904 in _start (/home/
0xb3c03e68 is located 0 bytes to the right of 1512-byte region [0xb3c03880,
allocated by thread T0 here:
#0 0x80bd531 in __interceptor_
#1 0x839bb38 in MagickMalloc /home/user/
#2 0x8244d62 in ReadImage /home/user/
#3 0x812c3ac in ConvertImageCommand /home/user/
#4 0x8165066 in MagickCommand /home/user/
#5 0x81ed0dc in GMCommandSingle /home/user/
#6 0x81ea204 in GMCommand /home/user/
#7 0x80d4a76 in main /home/user/
SUMMARY: AddressSanitizer: heap-buffer-
Shadow bytes around the buggy address:
0x36780770: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36780780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36780790: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x367807a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x367807b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x367807c0: 00 00 00 00 00 00 00 00 00 00 00 00 00[fa]fa fa
0x367807d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x367807e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x367807f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36780800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36780810: 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
==32081==ABORTING
input file to trigger crash