Gentoo Archives: gentoo-announce

From: Raphael Marichez <falco@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200610-05 ] CAPI4Hylafax fax receiver: Execution of arbitrary code
Date: Tue, 17 Oct 2006 18:42:44
Message-Id: 20061017182733.GF29134@falco.falcal.net
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2 Gentoo Linux Security Advisory GLSA 200610-05
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4 http://security.gentoo.org/
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6
7 Severity: High
8 Title: CAPI4Hylafax fax receiver: Execution of arbitrary code
9 Date: October 17, 2006
10 Bugs: #145982
11 ID: 200610-05
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14
15 Synopsis
16 ========
17
18 CAPI4Hylafax allows remote attackers to execute arbitrary commands.
19
20 Background
21 ==========
22
23 CAPI4Hylafax makes it possible to send and receive faxes via CAPI and
24 AVM Fritz!Cards.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 capi4hylafax < 01.03.00.99.300.3-r1 >= 01.03.00.99.300.3-r1
33
34 Description
35 ===========
36
37 Lionel Elie Mamane discovered an error in c2faxrecv, which doesn't
38 properly sanitize TSI strings when handling incoming calls.
39
40 Impact
41 ======
42
43 A remote attacker can send null (\0) and shell metacharacters in the
44 TSI string from an anonymous fax number, leading to the execution of
45 arbitrary code with the rights of the user running c2faxrecv.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All CAPI4Hylafax users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=net-misc/capi4hylafax-01.03.00.99.300.3-r1"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2006-3126
64 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3126
65
66 Availability
67 ============
68
69 This GLSA and any updates to it are available for viewing at
70 the Gentoo Security Website:
71
72 http://security.gentoo.org/glsa/glsa-200610-05.xml
73
74 Concerns?
75 =========
76
77 Security is a primary focus of Gentoo Linux and ensuring the
78 confidentiality and security of our users machines is of utmost
79 importance to us. Any security concerns should be addressed to
80 security@g.o or alternatively, you may file a bug at
81 http://bugs.gentoo.org.
82
83 License
84 =======
85
86 Copyright 2006 Gentoo Foundation, Inc; referenced text
87 belongs to its owner(s).
88
89 The contents of this document are licensed under the
90 Creative Commons - Attribution / Share Alike license.
91
92 http://creativecommons.org/licenses/by-sa/2.5