Bug 1184449 (CVE-2014-9639)

Summary:	CVE-2014-9639 vorbis-tools: integer overflow on crafted WAV file
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	carnil, hdegoede, kdudka, mprpic, sisharma, vkaigoro
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-05-13 07:07:25 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1184452
Bug Blocks:	1184457, 1185273

Description Martin Prpič 2015-01-21 12:47:09 UTC

An integer overflow flaw, leading to an out-of-bounds memory read, was found in the way the oggenc utility, which is used to encode audio into the Ogg Vorbis format, processed certain WAV files. An attacker could provide a specially crafted WAV file that would crash oggenc when processed.

Upstream report:

https://trac.xiph.org/ticket/2136

Comment 1 Martin Prpič 2015-01-21 12:48:41 UTC

Created vorbis-tools tracking bugs for this issue:

Affects: fedora-all [bug 1184452]

Comment 2 Vasyl Kaigorodov 2015-01-23 11:21:17 UTC

*** Bug 1185269 has been marked as a duplicate of this bug. ***

Comment 3 Kamil Dudka 2015-01-26 12:26:52 UTC

I am not able to reproduce the crash on x86_64 using vorbis-tools-1.4.0-18.fc21 and attachment #983303 [details].  Valgrind output is sane:

$ rpm -q vorbis-tools
vorbis-tools-1.4.0-18.fc21.x86_64

$ curl -JO 'https://bugzilla.redhat.com/attachment.cgi?id=983303'
curl: Saved to filename 'crash_ex.wav'

$ valgrind oggenc -r -o test.ogg ./crash_ex.wav
==24113== Memcheck, a memory error detector
==24113== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==24113== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==24113== Command: oggenc -r -o test.ogg ./crash_ex.wav
==24113==
Encoding "./crash_ex.wav" to
         "test.ogg"
at quality 3.00


Done encoding file "test.ogg"

        File length:  0m 00.0s
        Elapsed time: 0m 00.7s
        Rate:         0.0041
        Average bitrate: 692.3 kb/s

==24113==
==24113== HEAP SUMMARY:
==24113==     in use at exit: 0 bytes in 0 blocks
==24113==   total heap usage: 1,128 allocs, 1,128 frees, 585,608 bytes allocated
==24113==
==24113== All heap blocks were freed -- no leaks are possible
==24113==
==24113== For counts of detected and suppressed errors, rerun with: -v
==24113== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)


Please provide self-contained steps to reproduce the bug.

Comment 5 Kamil Dudka 2015-02-19 09:24:38 UTC

Thanks for the hint!  I should not have used the -r option.  My mistake.

Comment 6 Kamil Dudka 2015-02-19 15:18:06 UTC

I have proposed a patch upstream:

http://lists.xiph.org/pipermail/vorbis-dev/2015-February/020423.html

Comment 7 Fedora Update System 2015-02-28 10:24:34 UTC

vorbis-tools-1.4.0-19.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2015-02-28 10:26:58 UTC

vorbis-tools-1.4.0-14.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.