Algorithmic complexity vulnerability in the java.util.regex.Pattern.compile method in Sun Java Development Kit (JDK) before 1.6, when used with spring.jar in SpringSource Spring Framework 1.1.0 through 2.5.6 and 3.0.0.M1 through 3.0.0.M2 and dm Server 1.0.0 through 1.0.2, allows remote attackers to cause a denial of service (CPU consumption) via serializable data with a long regex string containing multiple optional groups, a related issue to CVE-2004-2540.

Unspecified vulnerability in Sun Java JDK and JRE 5.0 Update 4 and earlier allows remote attackers to bypass Java sandbox security and obtain privileges via unspecified vectors involving the reflection APIs, aka the "fourth issue."

Java Runtime Environment in Java Development Kit (JDK) 1.2.2_05 and earlier can allow an untrusted Java class to call into a disallowed class, which could allow an attacker to escape the Java sandbox and conduct unauthorized activities.