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[gentoo-announce] [ GLSA 201203-13 ] Openswan: Denial of Service

Posted on 16 March 2012
Gentoo-announce

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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
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

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


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