Description:
jasper is an open-source initiative to provide a free software-based reference implementation of the codec specified in the JPEG-2000 Part-1 standard.
Another round of fuzzing shows that a crafted image causes an invalid memory write.
The complete ASan output:
# imginfo -f $FILE ==24746==ERROR: AddressSanitizer: SEGV on unknown address 0x7ef94fe46c88 (pc 0x7efd4faa510d bp 0x7ffde2235af0 sp 0x7ffde2235900 T0) ==24746==The signal is caused by a WRITE memory access. #0 0x7efd4faa510c in dec_clnpass /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_t1dec.c:869:4 #1 0x7efd4faa510c in jpc_dec_decodecblk /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_t1dec.c:283 #2 0x7efd4fa9ef89 in jpc_dec_decodecblks /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_t1dec.c:177:11 #3 0x7efd4fa394f1 in jpc_dec_tiledecode /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:1085:6 #4 0x7efd4fa2acdf in jpc_dec_process_sod /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:658:7 #5 0x7efd4fa346b3 in jpc_dec_decode /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:425:10 #6 0x7efd4fa346b3 in jpc_decode /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:262 #7 0x7efd4f996b84 in jas_image_decode /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/base/jas_image.c:444:16 #8 0x509eed in main /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/appl/imginfo.c:219:16 #9 0x7efd4ea9e61f in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289 #10 0x419978 in _init (/usr/bin/imginfo+0x419978) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /tmp/portage/media-libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_t1dec.c:869:4 in dec_clnpass ==24746==ABORTING
Affected version:
1.900.27
Fixed version:
N/A
Commit fix:
N/A
Credit:
This bug was discovered by Agostino Sarubbo of Gentoo.
CVE:
CVE-2017-5503
Reproducer:
https://github.com/asarubbo/poc/blob/master/00055-jasper-invalidwrite-dec_clnpass
Timeline:
2016-11-20: bug discovered and reported upstream
2017-01-16: blog post about the issue
2017-01-17: CVE assigned
Note:
This bug was found with American Fuzzy Lop.
Permalink:
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