Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [day] [month] [year] [list]
Date: Wed, 26 Aug 2015 23:01:28 +0200
From: Gustavo Grieco <gustavo.grieco@...il.com>
To: oss-security@...ts.openwall.com
Subject: Multiple memory corruptions caused by uninitialized values in JasPer 1.900

Hi,

Following Raphael's advice, i found some memory corruptions in JasPer 1.900
after a quick round of fuzzing of the regression tests of Openjpeg. A few
interesting test cases are available here:

https://zimbra.imag.fr/home/gustavo.grieco@imag.fr/Briefcase/Public/cases.tar.gz

They are compressed to avoid easily crash programs like Nautilus and
Firefox. All them can be verified using:

jasper --input $filename --output-format pnm

(tested in Ubuntu 14.04, 32-bit but it should work in other configurations)

Additionally. sigsegv.jp2 crashes most of the programs using gdk-pixbuf
like Firefox and Chrome (!). I report them this issue a few days ago and
advise them to disable preview of jpeg images since Jasper is unmaintained
and vulnerable. Mozilla developers are working hard trying to find a
workaround to avoid use vulnerable code.
On the other hand, Chromium developers dismissed this issue saying that
they will wait the "upstream fix".

I think the cause of such memory corruptions is uninitialized values, taken
from the heap, as valgrind reports:


==15417== Memcheck, a memory error detector
==15417== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==15417== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright
info
==15417== Command: jasper --input sigsegv.jp2 --output-format pnm
==15417==
==15417== Conditional jump or move depends on uninitialised value(s)
==15417==    at 0x405EE3F: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405F110: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405E6FC: jpc_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4057805: jp2_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x404BDAB: jas_image_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x8048D78: ??? (in /usr/bin/jasper)
==15417==    by 0x40B1A82: (below main) (libc-start.c:287)
==15417==  Uninitialised value was created by a heap allocation
==15417==    at 0x402A17C: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==15417==    by 0x405127A: jas_malloc (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4051323: jas_alloc2 (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405C926: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405E6FC: jpc_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4057805: jp2_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x404BDAB: jas_image_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x8048D78: ??? (in /usr/bin/jasper)
==15417==    by 0x40B1A82: (below main) (libc-start.c:287)
==15417==
==15417== Conditional jump or move depends on uninitialised value(s)
==15417==    at 0x405F06C: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405F110: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405E6FC: jpc_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4057805: jp2_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x404BDAB: jas_image_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x8048D78: ??? (in /usr/bin/jasper)
==15417==    by 0x40B1A82: (below main) (libc-start.c:287)
==15417==  Uninitialised value was created by a heap allocation
==15417==    at 0x402A17C: malloc (in
/usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==15417==    by 0x405127A: jas_malloc (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4051323: jas_alloc2 (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405C826: ??? (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x405E6FC: jpc_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x4057805: jp2_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x404BDAB: jas_image_decode (in
/usr/lib/i386-linux-gnu/libjasper.so.1.0.0)
==15417==    by 0x8048D78: ??? (in /usr/bin/jasper)
==15417==    by 0x40B1A82: (below main) (libc-start.c:287)
==15417==

Regards,
Gustavo.

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.