USN-1755-1: OpenJDK 6 vulnerabilities

5 March 2013

openjdk-6 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 10.04 LTS

Summary

OpenJDK could be made to crash or run programs as your login if it opened a specially crafted file.

Software Description

  • openjdk-6 - Open Source Java implementation

Details

It was discovered that OpenJDK did not properly validate certain types of images. A remote attacker could exploit this to cause OpenJDK to crash. (CVE-2013-0809)

It was discovered that OpenJDK did not properly check return values when performing color conversion for images. If a user were tricked into opening a crafted image with OpenJDK, such as with the Java plugin, a remote attacker could cause OpenJDK to crash or execute arbitrary code outside of the Java sandbox with the privileges of the user invoking the program. (CVE-2013-1493)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 LTS
icedtea-6-jre-cacao - 6b27-1.12.3-0ubuntu1~12.04.1
icedtea-6-jre-jamvm - 6b27-1.12.3-0ubuntu1~12.04.1
openjdk-6-jre - 6b27-1.12.3-0ubuntu1~12.04.1
openjdk-6-jre-headless - 6b27-1.12.3-0ubuntu1~12.04.1
openjdk-6-jre-lib - 6b27-1.12.3-0ubuntu1~12.04.1
openjdk-6-jre-zero - 6b27-1.12.3-0ubuntu1~12.04.1
Ubuntu 11.10
icedtea-6-jre-cacao - 6b27-1.12.3-0ubuntu1~11.10.1
icedtea-6-jre-jamvm - 6b27-1.12.3-0ubuntu1~11.10.1
openjdk-6-jre - 6b27-1.12.3-0ubuntu1~11.10.1
openjdk-6-jre-headless - 6b27-1.12.3-0ubuntu1~11.10.1
openjdk-6-jre-lib - 6b27-1.12.3-0ubuntu1~11.10.1
openjdk-6-jre-zero - 6b27-1.12.3-0ubuntu1~11.10.1
Ubuntu 10.04 LTS
icedtea-6-jre-cacao - 6b27-1.12.3-0ubuntu1~10.04.1
openjdk-6-jre - 6b27-1.12.3-0ubuntu1~10.04.1
openjdk-6-jre-headless - 6b27-1.12.3-0ubuntu1~10.04.1
openjdk-6-jre-lib - 6b27-1.12.3-0ubuntu1~10.04.1
openjdk-6-jre-zero - 6b27-1.12.3-0ubuntu1~10.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart any applications using OpenJDK, such as your browser, to make all the necessary changes.

References