[Full-disclosure] [ GLSA 200703-28 ] CUPS: Denial of Service

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200703-28
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: CUPS: Denial of Service
      Date: March 31, 2007
      Bugs: #170881
        ID: 200703-28

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Synopsis
========

CUPS incorrectly handles partially-negotiated SSL connections allowing
for a Denial of Service.

Background
==========

CUPS provides a portable printing layer for UNIX-based operating
systems.

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

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  net-print/cups       < 1.2.9                             >= 1.2.9

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

CUPS does not properly handle partially-negotiated SSL connections.
Upon receiving a partially-negotiated SSL connection, CUPS no longer
accepts further incoming connections, as the initial connection never
times out.

Impact
======

An attacker could partially negotiate an SSL connection with a CUPS
server, and cause future connections to that server to fail, resulting
in a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All CUPS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-print/cups-1.2.9"

References
==========

  [ 1 ] CVE-2007-0720
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0720

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

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

  http://security.gentoo.org/glsa/glsa-200703-28.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 at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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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