Gentoo Archives: gentoo-announce

From: Stefan Behte <craig@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201202-08 ] stunnel: Arbitrary code execution
Date: Wed, 29 Feb 2012 21:09:46
Message-Id: 4F4E5F24.4060304@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201202-08
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: stunnel: Arbitrary code execution
9 Date: February 29, 2012
10 Bugs: #379859
11 ID: 201202-08
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14
15 Synopsis
16 ========
17
18 A vulnerability was found in stunnel, allowing remote attackers to
19 cause a Denial of Service and potentially arbitrary code execution.
20
21 Background
22 ==========
23
24 The stunnel program is designed to work as an SSL encryption wrapper
25 between a client and a local or remote server.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 net-misc/stunnel < 4.44 >= 4.44
34
35 Description
36 ===========
37
38 An unspecified heap vulnerability was discovered in stunnel.
39
40 Impact
41 ======
42
43 The vulnerability may possibly be leveraged to perform remote code
44 execution or a Denial of Service attack.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All stunnel users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.44"
58
59 References
60 ==========
61
62 [ 1 ] CVE-2011-2940
63 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2940
64
65 Availability
66 ============
67
68 This GLSA and any updates to it are available for viewing at
69 the Gentoo Security Website:
70
71 http://security.gentoo.org/glsa/glsa-201202-08.xml
72
73 Concerns?
74 =========
75
76 Security is a primary focus of Gentoo Linux and ensuring the
77 confidentiality and security of our users' machines is of utmost
78 importance to us. Any security concerns should be addressed to
79 security@g.o or alternatively, you may file a bug at
80 https://bugs.gentoo.org.
81
82 License
83 =======
84
85 Copyright 2012 Gentoo Foundation, Inc; referenced text
86 belongs to its owner(s).
87
88 The contents of this document are licensed under the
89 Creative Commons - Attribution / Share Alike license.
90
91 http://creativecommons.org/licenses/by-sa/2.5

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