Gentoo Archives: gentoo-announce

From: Robert Buchholz <rbu@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200903-11 ] PyCrypto: Execution of arbitrary code
Date: Mon, 09 Mar 2009 13:09:31
Message-Id: 200903091405.51739.rbu@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200903-11
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: PyCrypto: Execution of arbitrary code
9 Date: March 09, 2009
10 Bugs: #258049
11 ID: 200903-11
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14
15 Synopsis
16 ========
17
18 A buffer overflow in PyCrypto might lead to the execution of arbitrary
19 code when decrypting using ARC2.
20
21 Background
22 ==========
23
24 PyCrypto is the Python Cryptography Toolkit.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 dev-python/pycrypto < 2.0.1-r8 >= 2.0.1-r8
33
34 Description
35 ===========
36
37 Mike Wiacek of the Google Security Team reported a buffer overflow in
38 the ARC2 module when processing a large ARC2 key length.
39
40 Impact
41 ======
42
43 A remote attacker could entice a user or automated system to decrypt an
44 ARC2 stream in an application using PyCrypto, possibly resulting in the
45 execution of arbitrary code or a Denial of Service.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All PyCrypto users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=dev-python/pycrypto-2.0.1-r8"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2009-0544
64 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0544
65
66 Availability
67 ============
68
69 This GLSA and any updates to it are available for viewing at
70 the Gentoo Security Website:
71
72 http://security.gentoo.org/glsa/glsa-200903-11.xml
73
74 Concerns?
75 =========
76
77 Security is a primary focus of Gentoo Linux and ensuring the
78 confidentiality and security of our users machines is of utmost
79 importance to us. Any security concerns should be addressed to
80 security@g.o or alternatively, you may file a bug at
81 http://bugs.gentoo.org.
82
83 License
84 =======
85
86 Copyright 2009 Gentoo Foundation, Inc; referenced text
87 belongs to its owner(s).
88
89 The contents of this document are licensed under the
90 Creative Commons - Attribution / Share Alike license.
91
92 http://creativecommons.org/licenses/by-sa/2.5

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