Gentoo Archives: gentoo-announce

From: Tobias Heinlein <keytoaster@g.o>
To: gentoo-announce@g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200903-02 ] ZNC: Privilege escalation
Date: Fri, 06 Mar 2009 22:40:42
Message-Id: 49B1A52F.6000904@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200903-02
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4 http://security.gentoo.org/
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6
7 Severity: High
8 Title: ZNC: Privilege escalation
9 Date: March 06, 2009
10 Bugs: #260148
11 ID: 200903-02
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14
15 Synopsis
16 ========
17
18 A vulnerability in ZNC allows for privilege escalation.
19
20 Background
21 ==========
22
23 ZNC is an advanced IRC bouncer.
24
25 Affected packages
26 =================
27
28 -------------------------------------------------------------------
29 Package / Vulnerable / Unaffected
30 -------------------------------------------------------------------
31 1 net-irc/znc < 0.066 >= 0.066
32
33 Description
34 ===========
35
36 cnu discovered multiple CRLF injection vulnerabilities in ZNC's
37 webadmin module.
38
39 Impact
40 ======
41
42 A remote authenticated attacker could modify the znc.conf configuration
43 file and gain privileges via newline characters in e.g. the QuitMessage
44 field, and possibly execute arbitrary code.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All ZNC users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=net-irc/znc-0.066"
58
59 References
60 ==========
61
62 [ 1 ] CVE-2009-0759
63 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0759
64
65 Availability
66 ============
67
68 This GLSA and any updates to it are available for viewing at
69 the Gentoo Security Website:
70
71 http://security.gentoo.org/glsa/glsa-200903-02.xml
72
73 Concerns?
74 =========
75
76 Security is a primary focus of Gentoo Linux and ensuring the
77 confidentiality and security of our users machines is of utmost
78 importance to us. Any security concerns should be addressed to
79 security@g.o or alternatively, you may file a bug at
80 http://bugs.gentoo.org.
81
82 License
83 =======
84
85 Copyright 2009 Gentoo Foundation, Inc; referenced text
86 belongs to its owner(s).
87
88 The contents of this document are licensed under the
89 Creative Commons - Attribution / Share Alike license.
90
91 http://creativecommons.org/licenses/by-sa/2.5

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