CentOS Errata and Security Advisory CESA-2012:1327
FreeRADIUS is a high-performance and highly configurable free Remote Authentication Dial In User Service (RADIUS) server, designed to allow centralized authentication and authorization for a network.
A buffer overflow flaw was discovered in the way radiusd handled the expiration date field in X.509 client certificates. A remote attacker could possibly use this flaw to crash radiusd if it were configured to use the certificate or TLS tunnelled authentication methods (such as EAP-TLS, EAP-TTLS, and PEAP). (CVE-2012-3547)
Red Hat would like to thank Timo Warns of PRESENSE Technologies GmbH for reporting this issue.
Users of FreeRADIUS are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, radiusd will be restarted automatically.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2012-October/030943.html
Affected packages: freeradius2 freeradius2-krb5 freeradius2-ldap freeradius2-mysql freeradius2-perl freeradius2-postgresql freeradius2-python freeradius2-unixODBC freeradius2-utils
Upstream details at: https://rhn.redhat.com/errata/RHSA-2012-1327.html