It was discovered that OpenJDK 7’s security mechanism could be bypassed via Java applets. If a user were tricked into opening a malicious website, a remote attacker could exploit this to perform arbitrary code execution as the user invoking the program.
Updated packages are available from security.ubuntu.com.
========================================================================== Ubuntu Security Notice USN-1693-1 January 16, 2013 openjdk-7 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.10 Summary: OpenJDK 7 could be made to crash or run programs as your login if it opened a specially crafted Java applet. Software Description: - openjdk-7: Open Source Java implementation Details: It was discovered that OpenJDK 7's security mechanism could be bypassed via Java applets. If a user were tricked into opening a malicious website, a remote attacker could exploit this to perform arbitrary code execution as the user invoking the program. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.10: icedtea-7-jre-cacao 7u9-2.3.4-0ubuntu188.8.131.52 icedtea-7-jre-jamvm 7u9-2.3.4-0ubuntu184.108.40.206 openjdk-7-jre 7u9-2.3.4-0ubuntu220.127.116.11 openjdk-7-jre-headless 7u9-2.3.4-0ubuntu18.104.22.168 openjdk-7-jre-lib 7u9-2.3.4-0ubuntu22.214.171.124 openjdk-7-jre-zero 7u9-2.3.4-0ubuntu126.96.36.199 After a standard system update you need to restart your browser to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1693-1 CVE-2012-3174, CVE-2013-0422 Package Information: https://launchpad.net/ubuntu/+source/openjdk-7/7u9-2.3.4-0ubuntu188.8.131.52