GLSA 200704-14: FreeRADIUS: Denial of Service

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

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.

License

Copyright 2010 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.

Thank you!