9.4 - RHSA-2014:1803

Problem Description:

An updated mod_auth_mellon package that fixes two security issues is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

mod_auth_mellon provides a SAML 2.0 authentication module for the Apache HTTP Server.

An information disclosure flaw was found in mod_auth_mellon's session handling that could lead to sessions overlapping in memory. A remote attacker could potentially use this flaw to obtain data from another user's session. (CVE-2014-8566)

It was found that uninitialized data could be read when processing a user's logout request. By attempting to log out, a user could possibly cause the Apache HTTP Server to crash. (CVE-2014-8567)

Red Hat would like to thank the mod_auth_mellon team for reporting these issues. Upstream acknowledges Matthew Slowe as the original reporter of CVE-2014-8566.

All users of mod_auth_mellon are advised to upgrade to this updated package, which contains a backported patch to correct these issues.

4. Solution:

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/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1157281 - CVE-2014-8566 mod_auth_mellon: remote memory disclosure flaw 1157954 - CVE-2014-8567 mod_auth_mellon: logout processing leads to denial of service