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Gentoo Linux Security Advisory GLSA 200907-09
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http://security.gentoo.org/
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Severity: High
Title: Cyrus-SASL: Execution of arbitrary code
Date: July 12, 2009
Bugs: #270261
ID: 200907-09
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Synopsis
========
A buffer overflow in Cyrus-SASL might allow for the execution of
arbitrary code in applications or daemons that authenticate using SASL.
Background
==========
Cyrus-SASL is an implementation of the Simple Authentication and
Security Layer.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/cyrus-sasl < 2.1.23 >= 2.1.23
Description
===========
James Ralston reported that in certain situations, Cyrus-SASL does not
properly terminate strings which can result in buffer overflows when
performing Base64 encoding.
Impact
======
A remote unauthenticated user might send specially crafted packets to a
daemon using Cyrus-SASL, possibly resulting in the execution of
arbitrary code with the privileges of the user running the daemon or a
Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Cyrus-SASL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.23"
References
==========
[ 1 ] CVE-2009-0688
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0688
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200907-09.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@xxxxxxxxxx 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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