GLSA 200704-14: FreeRADIUS: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	FreeRADIUS: Denial of Service
Date:	04/17/2007
Bugs:	#174292
ID:	200704-14

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	Architecture(s)
net-dialup/freeradius	< 1.1.6	>= 1.1.6	All supported architectures

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

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 https://bugs.gentoo.org.