out-of-bounds read in coders/sun.c:499 ReadSUNImage
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:
=======
==16603==ERROR: AddressSanitizer: heap-buffer-
READ of size 1 at 0xb2e03bd2 thread T0
#0 0x8806135 in ReadSUNImage /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 0xb7565a82 in __libc_start_main /build/
#11 0x80ddf34 in _start (/home/
0xb2e03bd2 is located 0 bytes to the right of 2898-byte region [0xb2e03080,
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:
0x365c0720: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x365c0730: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x365c0740: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x365c0750: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x365c0760: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x365c0770: 00 00 00 00 00 00 00 00 00 00[02]fa fa fa fa fa
0x365c0780: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365c0790: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365c07a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365c07b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x365c07c0: 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
==16603==ABORTING
information type: | Private Security → Public Security |
summary: |
- heap-buffer-overflow in coders/sun.c:499 ReadSUNImage + out-of-bounds read in coders/sun.c:499 ReadSUNImage |
Changed in imagemagick (Ubuntu): | |
status: | New → Confirmed |
https:/ /github. com/ImageMagick /ImageMagick/ issues/ 81