From: Robert Buchholz <rbu@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200907-09 ] Cyrus-SASL: Execution of arbitrary code
Date: Sun, 12 Jul 2009 19:42:21 +0200
User-Agent: KMail/1.9.10
Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
security-alerts@linuxsecurity.com
MIME-Version: 1.0
Content-Type: multipart/signed;
boundary="nextPart1981811.F407ItMYAH";
protocol="application/pgp-signature";
micalg=pgp-sha1
Content-Transfer-Encoding: 7bit
Message-Id: <200907121942.23180.rbu@gentoo.org.>
X-Virus-Scanned: antivirus-gw at tyumen.ru
--nextPart1981811.F407ItMYAH
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200907-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High
Title: Cyrus-SASL: Execution of arbitrary code
Date: July 12, 2009
Bugs: #270261
ID: 200907-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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
=================
-------------------------------------------------------------------
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@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
--nextPart1981811.F407ItMYAH
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: This is a digitally signed message part.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.11 (GNU/Linux)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=WAff
-----END PGP SIGNATURE-----
--nextPart1981811.F407ItMYAH--
