USN-2427-1: Libksba vulnerability

Ubuntu Security Notice USN-2427-1

27th November, 2014

libksba vulnerability

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

• Ubuntu 14.10


• Ubuntu 14.04 LTS


• Ubuntu 12.04 LTS

Summary

Libksba could be made to crash or run programs if it opened a specially crafted file.

Software description

• libksba - X.509 and CMS support library

Details

Hanno Böck discovered that Libksba incorrectly handled certain S/MIME

messages or ECC based OpenPGP data. An attacker could use this issue to

cause Libksba to crash, resulting in a denial of service, or possibly

execute arbitrary code.

Update instructions

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

Ubuntu 14.10:

libksba8 1.3.0-3ubuntu0.14.10.1

Ubuntu 14.04 LTS:

libksba8 1.3.0-3ubuntu0.14.04.1

Ubuntu 12.04 LTS:

libksba8 1.2.0-2ubuntu0.1

To update your system, please follow these instructions: http://bit.ly/1aJDvTw.

In general, a standard system update will make all the necessary changes.

References

CVE-2014-9087

from Ubuntu Security Notices http://bit.ly/1vUkzjs