Gentoo Archives: gentoo-announce

From: Mikle Kolyada <zlogene@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201404-03 ] OptiPNG: User-assisted execution of arbitrary code
Date: Mon, 07 Apr 2014 20:32:24
Message-Id: 53430C23.1070707@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201404-03
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: OptiPNG: User-assisted execution of arbitrary code
9 Date: April 07, 2014
10 Bugs: #435340
11 ID: 201404-03
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14
15 Synopsis
16 ========
17
18 A use-after-free error in OptiPNG could result in execution of
19 arbitrary code or Denial of Service.
20
21 Background
22 ==========
23
24 OptiPNG is a PNG optimizer that recompresses image files to a smaller
25 size, without losing any information.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 media-gfx/optipng < 0.7.3 >= 0.7.3
34
35 Description
36 ===========
37
38 A use-after-free vulnerability exists in the palette reduction
39 functionality of OptiPNG.
40
41 Impact
42 ======
43
44 A remote attacker could entice a user to open a specially crafted image
45 file, possibly resulting in execution of arbitrary code with the
46 privileges of the process or a Denial of Service condition.
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All OptiPNG users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=media-gfx/optipng-0.7.3"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2012-4432
65 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4432
66
67 Availability
68 ============
69
70 This GLSA and any updates to it are available for viewing at
71 the Gentoo Security Website:
72
73 http://security.gentoo.org/glsa/glsa-201404-03.xml
74
75 Concerns?
76 =========
77
78 Security is a primary focus of Gentoo Linux and ensuring the
79 confidentiality and security of our users' machines is of utmost
80 importance to us. Any security concerns should be addressed to
81 security@g.o or alternatively, you may file a bug at
82 https://bugs.gentoo.org.
83
84 License
85 =======
86
87 Copyright 2014 Gentoo Foundation, Inc; referenced text
88 belongs to its owner(s).
89
90 The contents of this document are licensed under the
91 Creative Commons - Attribution / Share Alike license.
92
93 http://creativecommons.org/licenses/by-sa/2.5
94
95 --
96 Mikle Kolyada
97 Gentoo Linux Developer

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