Gentoo Archives: gentoo-announce

From: Alex Legler <a3li@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200906-02 ] Ruby: Denial of Service
Date: Sun, 28 Jun 2009 21:37:40
Message-Id: 1246224918.5085.0.camel@localhost
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2 Gentoo Linux Security Advisory GLSA 200906-02
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Ruby: Denial of Service
9 Date: June 28, 2009
10 Bugs: #273213
11 ID: 200906-02
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14
15 Synopsis
16 ========
17
18 A flaw in the Ruby standard library might allow remote attackers to
19 cause a Denial of Service attack.
20
21 Background
22 ==========
23
24 Ruby is an interpreted object-oriented programming language. The
25 elaborate standard library includes the "BigDecimal" class.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 dev-lang/ruby < 1.8.6_p369 >= 1.8.6_p369
34
35 Description
36 ===========
37
38 Tadayoshi Funaba reported that BigDecimal in
39 ext/bigdecimal/bigdecimal.c does not properly handle string arguments
40 containing overly long numbers.
41
42 Impact
43 ======
44
45 A remote attacker could exploit this issue to remotely cause a Denial
46 of Service attack.
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All Ruby users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.6_p369"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2009-1904
65 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1904
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 http://security.gentoo.org/glsa/glsa-200906-02.xml
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 http://bugs.gentoo.org.
83
84 License
85 =======
86
87 Copyright 2009 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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