Gentoo Archives: gentoo-announce

From: Mikle Kolyada <zlogene@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201406-30 ] sudo: Privilege escalation
Date: Fri, 27 Jun 2014 09:35:18
Message-Id: 53AD3B46.9060609@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201406-30
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4 http://security.gentoo.org/
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6
7 Severity: High
8 Title: sudo: Privilege escalation
9 Date: June 27, 2014
10 Bugs: #503586
11 ID: 201406-30
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14
15 Synopsis
16 ========
17
18 A vulnerability has been found in sudo allowing a local attacker to
19 gain elevated privileges.
20
21 Background
22 ==========
23
24 sudo allows a system administrator to give users the ability to run
25 commands as other users. Access to commands may also be granted on a
26 range to hosts.
27
28 Affected packages
29 =================
30
31 -------------------------------------------------------------------
32 Package / Vulnerable / Unaffected
33 -------------------------------------------------------------------
34 1 app-admin/sudo < 1.8.5 >= 1.8.5
35 < 1.6.9
36
37 Description
38 ===========
39
40 When the Sudo env_reset option is disabled (it is enabled by default),
41 certain environment variables are not blacklisted as expected.
42
43 Impact
44 ======
45
46 A local attacker, authorized to run commands using sudo, can use this
47 flaw to execute arbitrary code or escalate his privileges.
48
49 Workaround
50 ==========
51
52 There is no known workaround at this time.
53
54 Resolution
55 ==========
56
57 All sudo users should upgrade to the latest version:
58
59 # emerge --sync
60 # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.5"
61
62 References
63 ==========
64
65 [ 1 ] CVE-2014-0106
66 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0106
67
68 Availability
69 ============
70
71 This GLSA and any updates to it are available for viewing at
72 the Gentoo Security Website:
73
74 http://security.gentoo.org/glsa/glsa-201406-30.xml
75
76 Concerns?
77 =========
78
79 Security is a primary focus of Gentoo Linux and ensuring the
80 confidentiality and security of our users' machines is of utmost
81 importance to us. Any security concerns should be addressed to
82 security@g.o or alternatively, you may file a bug at
83 https://bugs.gentoo.org.
84
85 License
86 =======
87
88 Copyright 2014 Gentoo Foundation, Inc; referenced text
89 belongs to its owner(s).
90
91 The contents of this document are licensed under the
92 Creative Commons - Attribution / Share Alike license.
93
94 http://creativecommons.org/licenses/by-sa/2.5

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