Gentoo Archives: gentoo-announce

From: Stefan Behte <craig@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201206-34 ] msmtp: X.509 NULL spoofing vulnerability
Date: Mon, 25 Jun 2012 19:26:23
Message-Id: 4FE8B6CC.2000102@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201206-34
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: msmtp: X.509 NULL spoofing vulnerability
9 Date: June 25, 2012
10 Bugs: #293647
11 ID: 201206-34
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14
15 Synopsis
16 ========
17
18 An error in the hostname matching in msmtp might enable remote
19 attackers to conduct man-in-the-middle attacks.
20
21 Background
22 ==========
23
24 msmtp is an SMTP client and SMTP plugin for mail user agents such as
25 Mutt.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 mail-mta/msmtp < 1.4.19 >= 1.4.19
34
35 Description
36 ===========
37
38 A vulnerability have been discovered in msmtp. Please review the CVE
39 identifier referenced below for details.
40
41 Impact
42 ======
43
44 A remote attacker might employ a specially crafted certificate to
45 conduct man-in-the-middle attacks on SSL connections made using msmtp.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All msmtp users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=mail-mta/msmtp-1.4.19"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2009-3942
64 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3942
65
66 Availability
67 ============
68
69 This GLSA and any updates to it are available for viewing at
70 the Gentoo Security Website:
71
72 http://security.gentoo.org/glsa/glsa-201206-34.xml
73
74 Concerns?
75 =========
76
77 Security is a primary focus of Gentoo Linux and ensuring the
78 confidentiality and security of our users' machines is of utmost
79 importance to us. Any security concerns should be addressed to
80 security@g.o or alternatively, you may file a bug at
81 https://bugs.gentoo.org.
82
83 License
84 =======
85
86 Copyright 2012 Gentoo Foundation, Inc; referenced text
87 belongs to its owner(s).
88
89 The contents of this document are licensed under the
90 Creative Commons - Attribution / Share Alike license.
91
92 http://creativecommons.org/licenses/by-sa/2.5

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