Gentoo Archives: gentoo-announce

From: Sergey Popov <pinkbyte@g.o>
To: gentoo-announce@g.o
Subject: [gentoo-announce] [ GLSA 201311-16 ] fcron: Information disclosure
Date: Mon, 25 Nov 2013 17:55:50
Message-Id: 52938EB4.6030008@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201311-16
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4 http://security.gentoo.org/
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6
7 Severity: Low
8 Title: fcron: Information disclosure
9 Date: November 25, 2013
10 Bugs: #308075
11 ID: 201311-16
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14
15 Synopsis
16 ========
17
18 A vulnerability has been found in fcron, allowing local attackers to
19 conduct symlink attacks.
20
21 Background
22 ==========
23
24 fcron is a periodic command scheduler for Unix-based systems
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 sys-process/fcron < 3.0.5-r2 >= 3.0.5-r2
33
34 Description
35 ===========
36
37 The fcrontab function contains a race condition relating to symlinks.
38
39 Impact
40 ======
41
42 A local attacker could perform symlink attacks to read arbitrary files
43 with the privileges of the user running the application.
44
45 Workaround
46 ==========
47
48 There is no known workaround at this time.
49
50 Resolution
51 ==========
52
53 All fcron users should upgrade to the latest version:
54
55 # emerge --sync
56 # emerge --ask --oneshot --verbose ">=sys-process/fcron-3.0.5-r2"
57
58 References
59 ==========
60
61 [ 1 ] CVE-2010-0792
62 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0792
63
64 Availability
65 ============
66
67 This GLSA and any updates to it are available for viewing at
68 the Gentoo Security Website:
69
70 http://security.gentoo.org/glsa/glsa-201311-16.xml
71
72 Concerns?
73 =========
74
75 Security is a primary focus of Gentoo Linux and ensuring the
76 confidentiality and security of our users' machines is of utmost
77 importance to us. Any security concerns should be addressed to
78 security@g.o or alternatively, you may file a bug at
79 https://bugs.gentoo.org.
80
81 License
82 =======
83
84 Copyright 2013 Gentoo Foundation, Inc; referenced text
85 belongs to its owner(s).
86
87 The contents of this document are licensed under the
88 Creative Commons - Attribution / Share Alike license.
89
90 http://creativecommons.org/licenses/by-sa/2.5

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