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 200705-18 ] PPTPD: Denial of Service attack
Date: Sun, 20 May 2007 07:57:30
Message-Id: 200705200938.16266.jaervosz@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200705-18
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: PPTPD: Denial of Service attack
9 Date: May 20, 2007
10 Bugs: #176936
11 ID: 200705-18
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14
15 Synopsis
16 ========
17
18 A vulnerability has been reported in PPTPD which could lead to a Denial
19 of Service.
20
21 Background
22 ==========
23
24 PPTPD is a Point-to-Point Tunnelling Protocol Daemon for Linux.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-dialup/pptpd < 1.3.4 >= 1.3.4
33
34 Description
35 ===========
36
37 James Cameron from HP has reported a vulnerability in PPTPD caused by
38 malformed GRE packets.
39
40 Impact
41 ======
42
43 A remote attacker could exploit this vulnerability to cause a Denial of
44 Service on the PPTPD connection.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All PPTPD users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=net-dialup/pptpd-1.3.4"
58
59 References
60 ==========
61
62 [ 1 ] CVE-2007-0244
63 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0244
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-200705-18.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 2007 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