Gentoo Archives: gentoo-announce

From: Kristian Fiskerstrand <k_f@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 201509-05 ] NetworkManager: Denial of Service
Date: Thu, 24 Sep 2015 17:05:30
Message-Id: 56042B42.9030804@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201509-05
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: NetworkManager: Denial of Service
9 Date: September 24, 2015
10 Bugs: #545980
11 ID: 201509-05
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14
15 Synopsis
16 ========
17
18 Improper handling of Router Advertisements in NetworkManager could
19 cause a Denial of Service condition in IPv6 network stacks.
20
21 Background
22 ==========
23
24 NetworkManager is an universal network configuration daemon for
25 laptops, desktops, servers and virtualization hosts.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 net-misc/networkmanager < 1.0.2 >= 1.0.2
34
35 Description
36 ===========
37
38 IPv6 Neighbour Discovery ICMP broadcast containing a non-route with a
39 low hop limit causes a Denial of Service by lowering the hop limit on
40 existing IPv6 routes in NetworkManager.
41
42 Impact
43 ======
44
45 A remote attacker on the same network segment could cause a Denial of
46 Service condition in NetworkManager
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All NetworkManager users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=net-misc/networkmanager-1.0.2"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2015-2924
65 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-2924
66
67 Availability
68 ============
69
70 This GLSA and any updates to it are available for viewing at
71 the Gentoo Security Website:
72
73 https://security.gentoo.org/glsa/201509-05
74
75 Concerns?
76 =========
77
78 Security is a primary focus of Gentoo Linux and ensuring the
79 confidentiality and security of our users' machines is of utmost
80 importance to us. Any security concerns should be addressed to
81 security@g.o or alternatively, you may file a bug at
82 https://bugs.gentoo.org.
83
84 License
85 =======
86
87 Copyright 2015 Gentoo Foundation, Inc; referenced text
88 belongs to its owner(s).
89
90 The contents of this document are licensed under the
91 Creative Commons - Attribution / Share Alike license.
92
93 http://creativecommons.org/licenses/by-sa/2.5

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