IBM's 1.4.2 SR8 Java release includes the IBM Java 2 Runtime Environment and the IBM Java 2 Software Development Kit.
A flaw in GIF image handling was found in the SUN Java Runtime Environment that has now been reported as also affecting IBM Java 2. An untrusted applet or application could use this flaw to elevate its privileges and potentially execute arbitrary code. (CVE-2007-0243)
All users of java-1.4.2-ibm should upgrade to these updated packages, which contain IBM's 1.4.2 SR8 Java release which resolves this issue.