(RHSA-2010:0130) Moderate: java-1.5.0-ibm security update

The IBM 1.5.0 Java release includes the IBM Java 2 Runtime Environment and
the IBM Java 2 Software Development Kit.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure
Sockets Layer) protocols handle session renegotiation. A man-in-the-middle
attacker could use this flaw to prefix arbitrary plain text to a client’s
session (for example, an HTTPS connection to a website). This could force
the server to process an attacker’s request as if authenticated using the
victim’s credentials. (CVE-2009-3555)

This update disables renegotiation in the Java Secure Socket Extension
(JSSE) component. Unsafe renegotiation can be re-enabled using the
com.ibm.jsse2.renegotiate property. Refer to the following Knowledgebase
article for details: http://kbase.redhat.com/faq/docs/DOC-20491

All users of java-1.5.0-ibm are advised to upgrade to these updated
packages, containing the IBM 1.5.0 SR11-FP1 Java release. All running
instances of IBM Java must be restarted for this update to take effect.