Gentoo Archives: gentoo-announce

From: Sune Kloppenborg Jeppesen <jaervosz@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200604-09 ] Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
Date: Fri, 21 Apr 2006 05:06:45
Message-Id: 200604210641.30568.jaervosz@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200604-09
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Cyrus-SASL: DIGEST-MD5 Pre-Authentication Denial of Service
9 Date: April 21, 2006
10 Bugs: #129523
11 ID: 200604-09
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14
15 Synopsis
16 ========
17
18 Cyrus-SASL contains a vulnerability in the DIGEST-MD5 process that
19 could lead to a Denial of Service.
20
21 Background
22 ==========
23
24 Cyrus-SASL is an implementation of the Simple Authentication and
25 Security Layer.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 dev-libs/cyrus-sasl < 2.1.21-r2 >= 2.1.21-r2
34
35 Description
36 ===========
37
38 Cyrus-SASL contains an unspecified vulnerability in the DIGEST-MD5
39 process that could lead to a Denial of Service.
40
41 Impact
42 ======
43
44 An attacker could possibly exploit this vulnerability by sending
45 specially crafted data stream to the Cyrus-SASL server, resulting in a
46 Denial of Service even if the attacker is not able to authenticate.
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All Cyrus-SASL users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.21-r2"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2006-1721
65 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1721
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-200604-09.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 http://bugs.gentoo.org.
83
84 License
85 =======
86
87 Copyright 2006 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/2.0