Otkrivena su i ispravljena dva sigurnosna propusta u radu programskog paketa Openswan. Zlonamjerni ih korisnici mogu iskoristiti za izvođenje DoS (eng. Denial of Service) napada.

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Gentoo Linux Security Advisory                           GLSA 201203-13
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Openswan: Denial of Service
     Date: March 16, 2012
     Bugs: #372961, #389097
       ID: 201203-13

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Synopsis
========

Multiple vulnerabilities in Openswan may create a Denial of Service
condition.

Background
==========

Openswan is an implementation of IPsec for Linux.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/openswan            < 2.6.37                  >= 2.6.37

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

Two vulnerabilities have been found in Openswan:

* Improper permissions are used on /var/run/starter.pid and
  /var/lock/subsys/ipsec (CVE-2011-2147).
* Openswan contains a use-after-free error in the cryptographic helper
  handler (CVE-2011-4073).

Impact
======

A remote authenticated attacker or a local attacker may be able to
cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Openswan users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/openswan-2.6.37"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since November 10, 2011. It is likely that your system is
already no longer affected by this issue.

References
==========

[ 1 ] CVE-2011-2147
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2147
[ 2 ] CVE-2011-4073
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4073

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

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

 http://security.gentoo.org/glsa/glsa-201203-13.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
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License
=======

Copyright 2012 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