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Ubuntu 12.04 LTS USN-1755-1: OpenJDK 6 Crash Risk & Code Execution

ubuntu
Calendar Grey March 6, 2013
Scroller Ubuntu
Recent findings reveal that OpenJDK on Ubuntu has vulnerabilities that may cause system crashes or permit unauthorized code execution. Immediate updates are advised
OpenJDK could be made to crash or run programs as your login if it opened a specially crafted file.

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)

Topics%20covered

Topics Covered

security advisory software update code execution remote code execution Ubuntu system crash OpenJDK

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

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

References

https://ubuntu.com/security/notices/USN-1755-1

CVE-2013-0809, CVE-2013-1493

Severity
important
Lowest
Low
Medium
High
Critical

=========================================================================Ubuntu Security Notice USN-1755-1

Topics%20covered

Topics Covered

security advisory software update code execution remote code execution Ubuntu system crash OpenJDK

Package Information

https://launchpad.net/ubuntu/+source/openjdk-6/6b27-1.12.3-0ubuntu1~12.04.1
https://launchpad.net/ubuntu/+source/openjdk-6/6b27-1.12.3-0ubuntu1~11.10.1
https://launchpad.net/ubuntu/+source/openjdk-6/6b27-1.12.3-0ubuntu1~10.04.1

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