Red Hat Security Advisory: java-1.5.0-ibm security update

Critical

Previously, a denial-of-service flaw was found in Java which allowed the creation of an inifinte loop in XML headers that would consume all CPU resources. This issue was patched and Java is no longer vulnerable to a denial-of-service flaw due to the initiation of an infinte loop by means of XML headers.

The audio system in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, does not prevent access to java.lang.System properties by (1) untrusted applets and (2) Java Web Start applications, which allows context-dependent attackers to obtain sensitive information by reading these properties.

The SOCKS proxy implementation in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows remote attackers to discover the username of the account that invoked an untrusted (1) applet or (2) Java Web Start application via unspecified vectors.

The proxy mechanism implementation in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, does not prevent access to browser cookies by untrusted (1) applets and (2) Java Web Start applications, which allows remote attackers to hijack web sessions via unspecified vectors.