Re: jasper: invalid memory read in jas_matrix_bindsub (jas_seq.c)

[Salvatore Bonaccorso <carnil () debian org>]

Hi

On Wed, Jan 25, 2017 at 10:12:23AM +0100, Agostino Sarubbo wrote:
> 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 
> read.
>
> The complete ASan output:
>
> # imginfo -f $FILE
> warning: ignoring unknown marker segment (0xff59)
> type = 0xff59 (UNKNOWN); len = 20;00 40 40 00 00 00 00 69 00 00 00 00 00 00 00 
> 00 00 00 warning: ignoring unknown marker segment (0xff46)
> type = 0xff46 (UNKNOWN); len = 20;01 40 40 00 00 00 00 00 00 00 00 00 00 00 12 
> 00 94 7f ASAN:DEADLYSIGNAL
> =================================================================
> ==22653==ERROR: AddressSanitizer: SEGV on unknown address 0x60180000ec30 (pc 
> 0x7f410df421b7 bp 0x7ffdc80abaf0 sp 0x7ffdc80aba60 T0)
> ==22653==The signal is caused by a READ memory access.
>     #0 0x7f410df421b6 in jas_matrix_bindsub /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/base/jas_seq.c:254:18
>     #1 0x7f410df951a1 in jpc_dec_tileinit /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/jpc/jpc_dec.c:835:5
>     #2 0x7f410df951a1 in jpc_dec_process_sod /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/jpc/jpc_dec.c:594
>     #3 0x7f410dfa1853 in jpc_dec_decode /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/jpc/jpc_dec.c:425:10
>     #4 0x7f410dfa1853 in jpc_decode /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/jpc/jpc_dec.c:262
>     #5 0x7f410df71231 in jp2_decode /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/jp2/jp2_dec.c:218:21
>     #6 0x7f410df33214 in jas_image_decode /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/base/jas_image.c:444:16
>     #7 0x50a3be in main /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/appl/imginfo.c:238:16
>     #8 0x7f410d01378f in __libc_start_main /tmp/portage/sys-libs/glibc-2.23-
> r3/work/glibc-2.23/csu/../csu/libc-start.c:289
>     #9 0x419cd8 in _start (/usr/bin/imginfo+0x419cd8)
>
> AddressSanitizer can not provide additional info.
> SUMMARY: AddressSanitizer: SEGV /tmp/portage/media-
> libs/jasper-2.0.10/work/jasper-2.0.10/src/libjasper/base/jas_seq.c:254:18 in 
> jas_matrix_bindsub
> ==22653==ABORTING
>
> Affected version:
> 2.0.10
>
> Fixed version:
> N/A
>
> Commit fix:
> N/A
>
> Credit:
> This bug was discovered by Agostino Sarubbo of Gentoo.
>
> CVE:
> N/A
>
> Reproducer:
> https://github.com/asarubbo/poc/blob/master/00125-jasper-invalidread-jas_matrix_bindsub
>
> Timeline:
> 2017-01-21: bug discovered and reported upstream
> 2017-01-25: blog post about the issue
>
> Note:
> This bug was found with American Fuzzy Lop.
>
> Permalink:
> https://blogs.gentoo.org/ago/2017/01/25/jasper-invalid-memory-read-in-jas_matrix_bindsub-jas_seq-c

This one should be https://github.com/mdadams/jasper/issues/113

Regards,
Salvatore