Sun releases patch to address a number of serious vulnerabilities

A security vulnerability in the Java Runtime Environment (JRE) with the processing of XSLT transformations may allow an untrusted applet or application that is downloaded from a website to elevate its privileges. For example, an applet may read certain unauthorized URL resources (such as some files and web pages) or potentially execute arbitrary code. This vulnerability may also be exploited to create a Denial-of-Service (DoS) condition by causing the JRE to crash. (CVE-2008-1187)