Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 through Update 11, 6 through Update 38, and 5.0 through Update 38, and OpenJDK 6 and 7, allows remote attackers to affect integrity via unknown vectors related to Networking. NOTE: the previous information is from the February 2013 CPU. Oracle has not commented on claims from another vendor that this issue allows remote attackers to avoid triggering an exception during the deserialization of invalid InetSocketAddress data.
"Applies to client deployment of Java only. This vulnerability can be exploited only through untrusted Java Web Start applications and untrusted Java applets. (Untrusted Java Web Start applications and untrusted applets run in the Java sandbox with limited privileges.)"