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 200808-07 ] ClamAV: Multiple Denials of Service
Date: Fri, 08 Aug 2008 17:12:01
Message-Id: 20080808170900.GA11661@falco.falcal.net
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2 Gentoo Linux Security Advisory GLSA 200808-07
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4 http://security.gentoo.org/
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6
7 Severity: Low
8 Title: ClamAV: Multiple Denials of Service
9 Date: August 08, 2008
10 Bugs: #204340, #227351
11 ID: 200808-07
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14
15 Synopsis
16 ========
17
18 Multiple vulnerabilities in ClamAV may result in a Denial of Service.
19
20 Background
21 ==========
22
23 Clam AntiVirus is a free anti-virus toolkit for UNIX, designed
24 especially for e-mail scanning on mail gateways.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 app-antivirus/clamav < 0.93.3 >= 0.93.3
33
34 Description
35 ===========
36
37 Damian Put has discovered an out-of-bounds memory access while
38 processing Petite files (CVE-2008-2713, CVE-2008-3215). Also, please
39 note that the 0.93 ClamAV branch fixes the first of the two attack
40 vectors of CVE-2007-6595 concerning an insecure creation of temporary
41 files vulnerability. The sigtool attack vector seems still unfixed.
42
43 Impact
44 ======
45
46 A remote attacker could entice a user or automated system to scan a
47 specially crafted Petite file, possibly resulting in a Denial of
48 Service (daemon crash). Also, the insecure creation of temporary files
49 vulnerability can be triggered by a local user to perform a symlink
50 attack.
51
52 Workaround
53 ==========
54
55 There is no known workaround at this time.
56
57 Resolution
58 ==========
59
60 All ClamAV users should upgrade to the latest version:
61
62 # emerge --sync
63 # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.93.3"
64
65 References
66 ==========
67
68 [ 1 ] CVE-2007-6595
69 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6595
70 [ 2 ] CVE-2008-2713
71 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2713
72 [ 3 ] CVE-2008-3215
73 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3215
74
75 Availability
76 ============
77
78 This GLSA and any updates to it are available for viewing at
79 the Gentoo Security Website:
80
81 http://security.gentoo.org/glsa/glsa-200808-07.xml
82
83 Concerns?
84 =========
85
86 Security is a primary focus of Gentoo Linux and ensuring the
87 confidentiality and security of our users machines is of utmost
88 importance to us. Any security concerns should be addressed to
89 security@g.o or alternatively, you may file a bug at
90 http://bugs.gentoo.org.
91
92 License
93 =======
94
95 Copyright 2008 Gentoo Foundation, Inc; referenced text
96 belongs to its owner(s).
97
98 The contents of this document are licensed under the
99 Creative Commons - Attribution / Share Alike license.
100
101 http://creativecommons.org/licenses/by-sa/2.5