Important: openssl security update

Updated OpenSSL packages that correct a security issue are now available
for Red Hat Enterprise Linux 2.1, 3, 4, and 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

OpenSSL is a toolkit that implements Secure Sockets Layer (SSL v2/v3) and
Transport Layer Security (TLS v1) protocols as well as a full-strength,
general purpose, cryptography library.

The Google security team discovered a flaw in the way OpenSSL checked the
verification of certificates. An attacker in control of a malicious server,
or able to effect a "man in the middle" attack, could present a malformed
SSL/TLS signature from a certificate chain to a vulnerable client and
bypass validation. (CVE-2008-5077)

All OpenSSL users should upgrade to these updated packages, which contain
backported patches to resolve these issues. For the update to take effect,
all running OpenSSL client applications must be restarted, or the system
rebooted.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

476671 - CVE-2008-5077 OpenSSL Incorrect checks for malformed signatures

https://www.redhat.com/security/data/cve/CVE-2008-5077.html
http://www.openssl.org/news/secadv_20090107.txt
http://www.redhat.com/security/updates/classification/#important