out-of-bounds read in coders/viff.c:445 ReadVIFFImage
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 d8382f9c0ffa520
Command: magick infile /dev/null
Build info:
#Configure command:
CC=afl-clang-fast CXX=afl-
#Make command:
CC=afl-clang-fast CXX=afl-
ASAN output:
=======
==20581==ERROR: AddressSanitizer: heap-buffer-
READ of size 4 at 0xb480485c thread T0
#0 0x886f19d in ReadVIFFImage /home/user/
#1 0x8a8b97a in ReadImage /home/user/
#2 0x8a937ef in ReadImages /home/user/
#3 0x93754a9 in CLINoImageOperator /home/user/
#4 0x937d98f in CLIOption /home/user/
#5 0x910afad in ProcessCommandO
#6 0x910e325 in MagickImageCommand /home/user/
#7 0x9112809 in MagickCommandGe
#8 0x80de10d in MagickMain /home/user/
#9 0x80de10d in main /home/user/
#10 0xb7549a82 in __libc_start_main /build/
#11 0x80ddf34 in _start (/home/
0xb480485c is located 0 bytes to the right of 60-byte region [0xb4804820,
allocated by thread T0 here:
#0 0x80c6b61 in malloc (/home/
#1 0x81939e9 in AcquireMagickMemory /home/user/
#2 0x81939e9 in AcquireQuantumM
#3 0x8a8b97a in ReadImage /home/user/
#4 0x8a937ef in ReadImages /home/user/
#5 0x93754a9 in CLINoImageOperator /home/user/
#6 0x937d98f in CLIOption /home/user/
#7 0x910afad in ProcessCommandO
SUMMARY: AddressSanitizer: heap-buffer-
Shadow bytes around the buggy address:
0x369008b0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x369008c0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
0x369008d0: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa
0x369008e0: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x369008f0: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
=>0x36900900: fa fa fa fa 00 00 00 00 00 00 00[04]fa fa fa fa
0x36900910: 00 00 00 00 00 00 00 fa fa fa fa fa 00 00 00 00
0x36900920: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
0x36900930: fa fa fa fa 00 00 00 00 00 00 00 04 fa fa fa fa
0x36900940: 00 00 00 00 00 00 00 04 fa fa fa fa 00 00 00 00
0x36900950: 00 00 00 04 fa fa fa fa 00 00 00 00 00 00 00 04
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
==20581==ABORTING
summary: |
- out-of-bounds read in coders/psd.c:797 ReadPSDChannelPixels + out-of-bounds read in coders/coders/viff.c:445 ReadVIFFImage |
summary: |
- out-of-bounds read in coders/coders/viff.c:445 ReadVIFFImage + out-of-bounds read in coders/viff.c:445 ReadVIFFImage |
Changed in imagemagick (Ubuntu): | |
status: | New → Triaged |
https:/ /github. com/ImageMagick /ImageMagick/ issues/ 77