out-of-bounds write in coders/pdb.c:691
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ImageMagick |
Fix Released
|
Unknown
|
|||
imagemagick (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
This bug was found while fuzzing ImageMagick with afl-fuzz
Tested on ImageMagick git commit %s
Command: magick id:000102,
=======
==31973==ERROR: AddressSanitizer: heap-buffer-
WRITE of size 1 at 0xb4201d80 thread T0
#0 0x866c0e5 in EncodeRLE /home/user/
#1 0x866c0e5 in WritePDBImage /home/user/
#2 0x8a95688 in WriteImage /home/user/
#3 0x8a9906c in WriteImages /home/user/
#4 0x93762df in CLINoImageOperator /home/user/
#5 0x937e0f1 in CLIOption /home/user/
#6 0x910bd93 in ProcessCommandO
#7 0x910e215 in MagickImageCommand /home/user/
#8 0x91126f9 in MagickCommandGe
#9 0x80de16d in MagickMain /home/user/
#10 0x80de16d in main /home/user/
#11 0xb74d3a82 in __libc_start_main /build/
#12 0x80ddf94 in _start (/usr/local/
0xb4201d80 is located 0 bytes to the right of 96-byte region [0xb4201d20,
allocated by thread T0 here:
#0 0x80c6bc1 in malloc (/usr/local/
#1 0x81889a9 in AcquireMagickMemory /home/user/
#2 0x81889a9 in AcquireQuantumM
#3 0x8a95688 in WriteImage /home/user/
#4 0x8a9906c in WriteImages /home/user/
#5 0x93762df in CLINoImageOperator /home/user/
#6 0x937e0f1 in CLIOption /home/user/
#7 0x910bd93 in ProcessCommandO
SUMMARY: AddressSanitizer: heap-buffer-
Shadow bytes around the buggy address:
0x36840360: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36840370: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36840380: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36840390: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
0x368403a0: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
=>0x368403b0:[fa]fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x368403c0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x368403d0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x368403e0: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x368403f0: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
0x36840400: 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
==31973==ABORTING
Changed in imagemagick (Ubuntu): | |
status: | New → Confirmed |
Changed in imagemagick (Ubuntu): | |
status: | Confirmed → Fix Released |
Changed in imagemagick: | |
status: | Unknown → Fix Released |
input file to trigger crash