[ GLSA 200603-21 ] Sendmail: Race condition in the handling of asynchronous signals

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200603-21
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Sendmail: Race condition in the handling of asynchronous
            signals
      Date: March 22, 2006
      Bugs: #125623
        ID: 200603-21

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Synopsis
========

Sendmail is vulnerable to a race condition which could lead to the
execution of arbitrary code with sendmail privileges.

Background
==========

Sendmail is a popular mail transfer agent (MTA).

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  mail-mta/sendmail      < 8.13.6                         >= 8.13.6

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

ISS discovered that Sendmail is vulnerable to a race condition in the
handling of asynchronous signals.

Impact
======

An attacker could exploit this via certain crafted timing conditions.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Sendmail users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-mta/sendmail-8.13.6"

References
==========

  [ 1 ] CVE-2006-0058
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0058
  [ 2 ] Sendmail Inc. advisory
        http://www.sendmail.com/company/advisory/index.shtml

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

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

  http://security.gentoo.org/glsa/glsa-200603-21.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 2006 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/2.0

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