Gentoo Archives: gentoo-announce

From: Raphael Marichez <falco@g.o>
To: gentoo-announce@g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200610-10 ] ClamAV: Multiple Vulnerabilities
Date: Tue, 24 Oct 2006 16:46:12
Message-Id: 20061024161348.GI25143@falco.falcal.net
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2 Gentoo Linux Security Advisory GLSA 200610-10
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4 http://security.gentoo.org/
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6
7 Severity: High
8 Title: ClamAV: Multiple Vulnerabilities
9 Date: October 24, 2006
10 Bugs: #151561
11 ID: 200610-10
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14
15 Synopsis
16 ========
17
18 ClamAV is vulnerable to a heap-based buffer overflow potentially
19 allowing remote execution of arbitrary code and a Denial of Service.
20
21 Background
22 ==========
23
24 ClamAV is a GPL virus scanner.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 app-antivirus/clamav < 0.88.5 >= 0.88.5
33
34 Description
35 ===========
36
37 Damian Put and an anonymous researcher reported a potential heap-based
38 buffer overflow vulnerability in rebuildpe.c responsible for the
39 rebuilding of an unpacked PE file, and a possible crash in chmunpack.c
40 in the CHM unpacker.
41
42 Impact
43 ======
44
45 By sending a malicious attachment to a mail server running ClamAV, or
46 providing a malicious file to ClamAV through any other method, a remote
47 attacker could cause a Denial of Service and potentially the execution
48 of arbitrary code with the permissions of the user running ClamAV.
49
50 Workaround
51 ==========
52
53 There is no known workaround at this time.
54
55 Resolution
56 ==========
57
58 All ClamAV users should upgrade to the latest version:
59
60 # emerge --sync
61 # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.88.5"
62
63 References
64 ==========
65
66 [ 1 ] Original commit log
67 http://sourceforge.net/project/shownotes.php?release_id=455799
68 [ 2 ] CVE-2006-4182
69 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4182
70
71 Availability
72 ============
73
74 This GLSA and any updates to it are available for viewing at
75 the Gentoo Security Website:
76
77 http://security.gentoo.org/glsa/glsa-200610-10.xml
78
79 Concerns?
80 =========
81
82 Security is a primary focus of Gentoo Linux and ensuring the
83 confidentiality and security of our users machines is of utmost
84 importance to us. Any security concerns should be addressed to
85 security@g.o or alternatively, you may file a bug at
86 http://bugs.gentoo.org.
87
88 License
89 =======
90
91 Copyright 2006 Gentoo Foundation, Inc; referenced text
92 belongs to its owner(s).
93
94 The contents of this document are licensed under the
95 Creative Commons - Attribution / Share Alike license.
96
97 http://creativecommons.org/licenses/by-sa/2.5