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Ubuntu 12.10 USN-1755-2 Critical: OpenJDK 7 Crash Risks

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Calendar Grey March 7, 2013
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OpenJDK security flaws in Ubuntu 12.10 might result in system failures or unwarranted execution of code. Ensure you update your system.
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-7: Open Source Java implementation

Details:

USN-1755-1 fixed vulnerabilities in OpenJDK 6. This update provides the

corresponding updates for OpenJDK 7.

Original advisory 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 unauthorized access critical application crash ubuntu openjdk-7

Update Instructions

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

Ubuntu 12.10:
  icedtea-7-jre-cacao             7u15-2.3.7-0ubuntu1~12.10.1
  icedtea-7-jre-jamvm             7u15-2.3.7-0ubuntu1~12.10.1
  openjdk-7-jre                   7u15-2.3.7-0ubuntu1~12.10.1
  openjdk-7-jre-headless          7u15-2.3.7-0ubuntu1~12.10.1
  openjdk-7-jre-lib               7u15-2.3.7-0ubuntu1~12.10.1
  openjdk-7-jre-zero              7u15-2.3.7-0ubuntu1~12.10.1

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
critical
Lowest
Low
Medium
High
Critical

=========================================================================Ubuntu Security Notice USN-1755-2

Topics%20covered

Topics Covered

security advisory unauthorized access critical application crash ubuntu openjdk-7

Package Information

https://launchpad.net/ubuntu/+source/openjdk-7/7u15-2.3.7-0ubuntu1~12.10.1

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