Gentoo Archives: gentoo-announce

From: Alex Legler <a3li@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200909-02 ] libvorbis: User-assisted execution of arbitrary code
Date: Mon, 07 Sep 2009 01:05:14
Message-Id: 20090907025743.1c433886@neon
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2 Gentoo Linux Security Advisory GLSA 200909-02
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: libvorbis: User-assisted execution of arbitrary code
9 Date: September 07, 2009
10 Bugs: #280590
11 ID: 200909-02
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14
15 Synopsis
16 ========
17
18 A processing error in libvorbis might result in the execution of
19 arbitrary code or a Denial of Service.
20
21 Background
22 ==========
23
24 libvorbis is the reference implementation of the Xiph.org Ogg Vorbis
25 audio file format. It is used by many applications for playback of Ogg
26 Vorbis files.
27
28 Affected packages
29 =================
30
31 -------------------------------------------------------------------
32 Package / Vulnerable / Unaffected
33 -------------------------------------------------------------------
34 1 media-libs/libvorbis < 1.2.3 >= 1.2.3
35
36 Description
37 ===========
38
39 Lucas Adamski reported that libvorbis does not correctly process file
40 headers, related to static mode headers and encoding books.
41
42 Impact
43 ======
44
45 A remote attacker could entice a user to play a specially crafted OGG
46 Vorbis file using an application that uses libvorbis, possibly
47 resulting in the execution of arbitrary code with the privileges of the
48 user running the application, or a Denial of Service.
49
50 Workaround
51 ==========
52
53 There is no known workaround at this time.
54
55 Resolution
56 ==========
57
58 All libvorbis users should upgrade to the latest version:
59
60 # emerge --sync
61 # emerge --ask --oneshot --verbose =media-libs/libvorbis-1.2.3
62
63 References
64 ==========
65
66 [ 1 ] CVE-2009-2663
67 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2663
68
69 Availability
70 ============
71
72 This GLSA and any updates to it are available for viewing at
73 the Gentoo Security Website:
74
75 http://security.gentoo.org/glsa/glsa-200909-02.xml
76
77 Concerns?
78 =========
79
80 Security is a primary focus of Gentoo Linux and ensuring the
81 confidentiality and security of our users machines is of utmost
82 importance to us. Any security concerns should be addressed to
83 security@g.o or alternatively, you may file a bug at
84 https://bugs.gentoo.org.
85
86 License
87 =======
88
89 Copyright 2009 Gentoo Foundation, Inc; referenced text
90 belongs to its owner(s).
91
92 The contents of this document are licensed under the
93 Creative Commons - Attribution / Share Alike license.
94
95 http://creativecommons.org/licenses/by-sa/2.5

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