Red Hat Security Advisory: freeradius2 security update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1327 Final 1 1 2012-10-02T17:08:00Z Current version 2012-10-02T17:08:00Z 2012-10-02T17:08:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-10-02T17:24:07Z Updated freeradius2 packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 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. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate https://rhn.redhat.com/errata/RHSA-2012-1327.html https://rhn.redhat.com/errata/RHSA-2012-1327.html https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/updates/classification/#moderate Red Hat Enterprise Linux (v. 5 server) RHEL Desktop Workstation (v. 5 client) freeradius2-2.1.12-4.el5_8.src.rpm freeradius2-2.1.12-4.el5_8 as a component of Red Hat Enterprise Linux (v. 5 server) freeradius2-2.1.12-4.el5_8 as a component of RHEL Desktop Workstation (v. 5 client) 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). 2012-08-29T00:00:00Z 2012-09-10T00:00:00Z CVE-2012-3547 5Client-Workstation-5.8.Z:freeradius2-2.1.12-4.el5_8 5Server-5.8.Z:freeradius2-2.1.12-4.el5_8 Moderate 2.3 AV:N/AC:L/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2012-1327.html https://www.redhat.com/security/data/cve/CVE-2012-3547.html CVE-2012-3547 https://bugzilla.redhat.com/show_bug.cgi?id=852752 bz#852752: CVE-2012-3547 freeradius: stack-based buffer overflow via long expiration date fields in client X509 certificates Red Hat would like to thank Timo Warns of PRESENSE Technologies GmbH for reporting this issue.