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Gentoo Linux Security Advisory                           GLSA 201006-07
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  Severity: Normal
     Title: SILC: Multiple vulnerabilities
      Date: June 01, 2010
      Bugs: #284561
        ID: 201006-07

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Synopsis
========

Multiple vulnerabilities were discovered in SILC Toolkit and SILC
Client, the worst of which allowing for execution of arbitrary code.

Background
==========

SILC (Secure Internet Live Conferencing protocol) Toolkit is a software
development kit for use in clients, and SILC Client is an IRSSI-based
text client.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  net-im/silc-toolkit      < 1.1.10                       >= 1.1.10
  2  net-im/silc-client        < 1.1.8                        >= 1.1.8
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Multiple vulnerabilities were discovered in SILC Toolkit and SILC
Client. For further information please consult the CVE entries
referenced below.

Impact
======

A remote attacker could overwrite stack locations and possibly execute
arbitrary code via a crafted OID value, Content-Length header or format
string specifiers in a nickname field or channel name.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SILC Toolkit users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/silc-toolkit-1.1.10"

All SILC Client users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/silc-client-1.1.8"

References
==========

  [ 1 ] CVE-2008-7159
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7159
  [ 2 ] CVE-2008-7160
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7160
  [ 3 ] CVE-2009-3051
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3051
  [ 4 ] CVE-2009-3163
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3163

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

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

  http://security.gentoo.org/glsa/glsa-201006-07.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
https://bugs.gentoo.org.

License
=======

Copyright 2010 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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