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Sicherheit: Denial of Service in FreeRADIUS
Aktuelle Meldungen Distributionen
Name: Denial of Service in FreeRADIUS
ID: 200704-14
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Mi, 18. April 2007, 00:39
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2028
Applikationen: FreeRADIUS

Originalnachricht


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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
=================

-------------------------------------------------------------------
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@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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