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 200608-23 ] Heartbeat: Denial of Service
Date: Thu, 24 Aug 2006 18:10:29
Message-Id: 200608241943.38700.jaervosz@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200608-23
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Heartbeat: Denial of Service
9 Date: August 24, 2006
10 Bugs: #141894
11 ID: 200608-23
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14
15 Synopsis
16 ========
17
18 Heartbeat is vulnerable to a Denial of Service which can be triggered
19 by a remote attacker without authentication.
20
21 Background
22 ==========
23
24 Heartbeat is a component of the High-Availability Linux project. It is
25 used to perform death-of-node detection, communications and cluster
26 management.
27
28 Affected packages
29 =================
30
31 -------------------------------------------------------------------
32 Package / Vulnerable / Unaffected
33 -------------------------------------------------------------------
34 1 sys-cluster/heartbeat < 2.0.7 >= 2.0.7
35
36 Description
37 ===========
38
39 Yan Rong Ge discovered that the peel_netstring() function in
40 cl_netstring.c does not validate the "length" parameter of user input,
41 which can lead to an out-of-bounds memory access when processing
42 certain Heartbeat messages (CVE-2006-3121). Furthermore an unspecified
43 local DoS issue was fixed (CVE-2006-3815).
44
45 Impact
46 ======
47
48 By sending a malicious UDP Heartbeat message, even before
49 authentication, a remote attacker can crash the master control process
50 of the cluster.
51
52 Workaround
53 ==========
54
55 There is no known workaround at this time.
56
57 Resolution
58 ==========
59
60 All Heartbeat users should upgrade to the latest version:
61
62 # emerge --sync
63 # emerge --ask --oneshot --verbose ">=sys-cluster/heartbeat-2.0.7"
64
65 References
66 ==========
67
68 [ 1 ] CVE-2006-3121
69 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3121
70 [ 2 ] CVE-2006-3815
71 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3815
72
73 Availability
74 ============
75
76 This GLSA and any updates to it are available for viewing at
77 the Gentoo Security Website:
78
79 http://security.gentoo.org/glsa/glsa-200608-23.xml
80
81 Concerns?
82 =========
83
84 Security is a primary focus of Gentoo Linux and ensuring the
85 confidentiality and security of our users machines is of utmost
86 importance to us. Any security concerns should be addressed to
87 security@g.o or alternatively, you may file a bug at
88 http://bugs.gentoo.org.
89
90 License
91 =======
92
93 Copyright 2006 Gentoo Foundation, Inc; referenced text
94 belongs to its owner(s).
95
96 The contents of this document are licensed under the
97 Creative Commons - Attribution / Share Alike license.
98
99 http://creativecommons.org/licenses/by-sa/2.5