Gentoo Archives: gentoo-announce

From: Pierre-Yves Rofes <py@g.o>
To: gentoo-announce@l.g.o
Cc: full-disclosure@××××××××××××××.uk, bugtraq@×××××××××××××.com, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200812-15 ] POV-Ray: User-assisted execution of arbitrary code
Date: Mon, 15 Dec 2008 00:58:20
Message-Id: 49453F33.20103@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200812-15
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: POV-Ray: User-assisted execution of arbitrary code
9 Date: December 14, 2008
10 Bugs: #153538
11 ID: 200812-15
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14
15 Synopsis
16 ========
17
18 POV-Ray includes a version of libpng that might allow for the execution
19 of arbitrary code when reading a specially crafted PNG file
20
21 Background
22 ==========
23
24 POV-Ray is a well known open-source ray tracer.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 media-gfx/povray < 3.6.1-r4 >= 3.6.1-r4
33
34 Description
35 ===========
36
37 POV-Ray uses a statically linked copy of libpng to view and output PNG
38 files. The version shipped with POV-Ray is vulnerable to CVE-2008-3964,
39 CVE-2008-1382, CVE-2006-3334, CVE-2006-0481, CVE-2004-0768. A bug in
40 POV-Ray's build system caused it to load the old version when your
41 installed copy of libpng was >=media-libs/libpng-1.2.10.
42
43 Impact
44 ======
45
46 An attacker could entice a user to load a specially crafted PNG file as
47 a texture, resulting in the execution of arbitrary code with the
48 permissions of the user running the application.
49
50 Workaround
51 ==========
52
53 There is no known workaround at this time.
54
55 Resolution
56 ==========
57
58 All POV-Ray users should upgrade to the latest version:
59
60 # emerge --sync
61 # emerge --ask --oneshot --verbose ">=media-gfx/povray-3.6.1-r4"
62
63 References
64 ==========
65
66 [ 1 ] CVE-2004-0768
67 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0768
68 [ 2 ] CVE-2006-0481
69 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0481
70 [ 3 ] CVE-2006-3334
71 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3334
72 [ 4 ] CVE-2008-1382
73 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1382
74 [ 5 ] CVE-2008-3964
75 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3964
76
77 Availability
78 ============
79
80 This GLSA and any updates to it are available for viewing at
81 the Gentoo Security Website:
82
83 http://security.gentoo.org/glsa/glsa-200812-15.xml
84
85 Concerns?
86 =========
87
88 Security is a primary focus of Gentoo Linux and ensuring the
89 confidentiality and security of our users machines is of utmost
90 importance to us. Any security concerns should be addressed to
91 security@g.o or alternatively, you may file a bug at
92 http://bugs.gentoo.org.
93
94 License
95 =======
96
97 Copyright 2008 Gentoo Foundation, Inc; referenced text
98 belongs to its owner(s).
99
100 The contents of this document are licensed under the
101 Creative Commons - Attribution / Share Alike license.
102
103 http://creativecommons.org/licenses/by-sa/2.5

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