[sb] [ GLSA 200410-05 ] Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities

["Kurt Lieber" <klieber () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200410-05
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities
      Date: October 07, 2004
      Bugs: #56016
        ID: 200410-05

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Synopsis
========

Cyrus-SASL contains two vulnerabilities that might allow an attacker to
completely compromise the vulnerable system.

Background
==========

Cyrus-SASL is an implementation of the Simple Authentication and
Security Layer.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /   Vulnerable   /                Unaffected
    -------------------------------------------------------------------
  1  dev-libs/cyrus-sasl     <= 2.1.18-r1                 >= 2.1.18-r2

Description
===========

Cyrus-SASL contains a remote buffer overflow in the digestmda5.c file.
Additionally, under certain conditions it is possible for a local user
to exploit a vulnerability in the way the SASL_PATH environment
variable is honored (CAN-2004-0884).

Impact
======

An attacker might be able to execute arbitrary code with the Effective
ID of the application calling the Cyrus-SASL libraries.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Cyrus-SASL users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=dev-libs/cyrus-sasl-2.1.18-r2"
    # emerge ">=dev-libs/cyrus-sasl-2.1.18-r2"

References
==========

  [ 1 ] CAN-2004-0884
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0884

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200410-05.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 2004 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/1.0

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