From: Robert Buchholz <rbu@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200903-11 ] PyCrypto: Execution of arbitrary code
Date: Mon, 9 Mar 2009 14:05:47 +0100
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Gentoo Linux Security Advisory GLSA 200903-11
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http://security.gentoo.org/
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Severity: Normal
Title: PyCrypto: Execution of arbitrary code
Date: March 09, 2009
Bugs: #258049
ID: 200903-11
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Synopsis
========
A buffer overflow in PyCrypto might lead to the execution of arbitrary
code when decrypting using ARC2.
Background
==========
PyCrypto is the Python Cryptography Toolkit.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-python/pycrypto < 2.0.1-r8 >= 2.0.1-r8
Description
===========
Mike Wiacek of the Google Security Team reported a buffer overflow in
the ARC2 module when processing a large ARC2 key length.
Impact
======
A remote attacker could entice a user or automated system to decrypt an
ARC2 stream in an application using PyCrypto, possibly resulting in the
execution of arbitrary code or a Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All PyCrypto users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-python/pycrypto-2.0.1-r8"
References
==========
[ 1 ] CVE-2009-0544
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0544
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-11.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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