Gentoo Archives: gentoo-announce

From: Stefan Behte <craig@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201206-29 ] mount-cifs: Multiple vulnerabilites
Date: Mon, 25 Jun 2012 19:25:07
Message-Id: 4FE8B571.1090600@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201206-29
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: mount-cifs: Multiple vulnerabilites
9 Date: June 25, 2012
10 Bugs: #308067
11 ID: 201206-29
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14
15 Synopsis
16 ========
17
18 Multiple vulnerabilities were found in mount-cifs, the worst of which
19 leading to privilege escalation.
20
21 Background
22 ==========
23
24 mount-cifs is the cifs filesystem mount helper split from Samba.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-fs/mount-cifs < 3.4.6 >= 3.4.6
33
34 Description
35 ===========
36
37 Multiple vulnerabilities have been discovered in mount-cifs. Please
38 review the CVE identifiers referenced below for details.
39
40 Impact
41 ======
42
43 The vulnerabilities allow local users to cause a denial of service
44 (mtab corruption) via a crafted string. Also, local users could mount a
45 CIFS share on an arbitrary mountpoint, and gain privileges via a
46 symlink attack on the mountpoint directory file.
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All mount-cifs users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=net-fs/mount-cifs-3.4.6"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2010-0547
65 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0547
66 [ 2 ] CVE-2010-0787
67 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0787
68
69 Availability
70 ============
71
72 This GLSA and any updates to it are available for viewing at
73 the Gentoo Security Website:
74
75 http://security.gentoo.org/glsa/glsa-201206-29.xml
76
77 Concerns?
78 =========
79
80 Security is a primary focus of Gentoo Linux and ensuring the
81 confidentiality and security of our users' machines is of utmost
82 importance to us. Any security concerns should be addressed to
83 security@g.o or alternatively, you may file a bug at
84 https://bugs.gentoo.org.
85
86 License
87 =======
88
89 Copyright 2012 Gentoo Foundation, Inc; referenced text
90 belongs to its owner(s).
91
92 The contents of this document are licensed under the
93 Creative Commons - Attribution / Share Alike license.
94
95 http://creativecommons.org/licenses/by-sa/2.5

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