Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Mon, 16 Jan 2017 11:59:06 +0100
From: Agostino Sarubbo <ago@...too.org>
To: oss-security@...ts.openwall.com
Subject: jasper: invalid memory read in jpc_undo_roi (jpc_dec.c)

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
==22872==ERROR: AddressSanitizer: SEGV on unknown address 0x7f8a4a950800 (pc 
0x7f8e4a543b93 bp 0x7ffe29bfdcd0 sp 0x7ffe29bfdb80 T0)
==22872==The signal is caused by a READ memory access.
    #0 0x7f8e4a543b92 in jpc_undo_roi /tmp/portage/media-
libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:1925:10
    #1 0x7f8e4a543b92 in jpc_dec_tiledecode /tmp/portage/media-
libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:1104
    #2 0x7f8e4a534cdf 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
    #3 0x7f8e4a53e6b3 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
    #4 0x7f8e4a53e6b3 in jpc_decode /tmp/portage/media-
libs/jasper-1.900.27/work/jasper-1.900.27/src/libjasper/jpc/jpc_dec.c:262
    #5 0x7f8e4a4a0b84 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
    #6 0x509eed in main /tmp/portage/media-
libs/jasper-1.900.27/work/jasper-1.900.27/src/appl/imginfo.c:219:16
    #7 0x7f8e495a861f in __libc_start_main /var/tmp/portage/sys-
libs/glibc-2.22-r4/work/glibc-2.22/csu/libc-start.c:289
    #8 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_dec.c:1925:10 
in jpc_undo_roi
==22872==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:
N/A

Reproducer:
https://github.com/asarubbo/poc/blob/master/00054-jasper-invalidread-jpc_undo_roi

Timeline:
2016-11-20: bug discovered and reported upstream
2017-01-16: blog post about the issue

Note:
This bug was found with American Fuzzy Lop.

Permalink:
https://blogs.gentoo.org/ago/2017/01/16/jasper-invalid-memory-read-in-jpc_undo_roi-jpc_dec-c

--
Agostino

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.