out-of-bounds write in ./MagickCore/pixel-accessor.h:766
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
imagemagick (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
This bug was found while fuzzing ImageMagick with afl-fuzz
Tested on ImageMagick version Tested on git commit 8bc3ab67d818204
Command: magick id:000002,
=======
==12486==ERROR: AddressSanitizer: heap-buffer-
WRITE of size 2 at 0xb3106606 thread T0
#0 0x88a4fd9 in InsertRow /home/user/
#1 0x888ace3 in UnpackWPGRaster /home/user/
#2 0x888ace3 in ReadWPGImage /home/user/
#3 0x8a940ba in ReadImage /home/user/
#4 0x8a9bf2f in ReadImages /home/user/
#5 0x93716d9 in CLINoImageOperator /home/user/
#6 0x9379bc1 in CLIOption /home/user/
#7 0x91071cd in ProcessCommandO
#8 0x910a545 in MagickImageCommand /home/user/
#9 0x910ea29 in MagickCommandGe
#10 0x80de12d in MagickMain /home/user/
#11 0x80de12d in main /home/user/
#12 0xb745aa82 in __libc_start_main /build/
#13 0x80ddf54 in _start (/usr/local/
0xb3106606 is located 6 bytes to the right of 25600-byte region [0xb3100200,
allocated by thread T0 here:
#0 0x80c7021 in __interceptor_
#1 0x8192c0f in AcquireAlignedM
#2 0x89b1f8e in OpenPixelCache /home/user/
#3 0x89bee6c in GetImagePixelCache /home/user/
#4 0x8982d3d in QueueAuthenticP
#5 0x89c08b9 in QueueAuthenticP
SUMMARY: AddressSanitizer: heap-buffer-
Shadow bytes around the buggy address:
0x36620c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36620c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36620c90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36620ca0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x36620cb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x36620cc0:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36620cd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36620ce0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36620cf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36620d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x36620d10: 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
==12486==ABORTING
Changed in imagemagick (Ubuntu): | |
status: | New → Confirmed |
input file to trigger crash