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Gentoo Linux Security Advisory GLSA 200704-14
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http://security.gentoo.org/
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Severity: Normal
Title: FreeRADIUS: Denial of Service
Date: April 17, 2007
Bugs: #174292
ID: 200704-14
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Synopsis
========
A memory leak has been discovered in FreeRADIUS, possibly allowing for
a Denial of Service.
Background
==========
FreeRADIUS is an open source RADIUS authentication server
implementation.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dialup/freeradius < 1.1.6 >= 1.1.6
Description
===========
The Coverity Scan project has discovered a memory leak within the
handling of certain malformed Diameter format values inside an EAP-TTLS
tunnel.
Impact
======
A remote attacker could send a large amount of specially crafted
packets to a FreeRADIUS server using EAP-TTLS authentication and
exhaust all memory, possibly resulting in a Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All FreeRADIUS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/freeradius-1.1.6"
References
==========
[ 1 ] CVE-2007-2028
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2028
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200704-14.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@xxxxxxxxxx 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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