Ubuntu Security Notice USN-2087-1
23rd January, 2014
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
NSPR could be made to crash or run programs if it received a specially crafted certificate.
- nspr - NetScape Portable Runtime Library
It was discovered that NSPR incorrectly handled certain malformed X.509
certificates. A remote attacker could use a crafted X.509 certificate to
cause NSPR to crash, leading to a denial of service, or possibly execute
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.10:
- libnspr4 2:4.9.5-1ubuntu1.1
- Ubuntu 12.10:
- libnspr4 4.9.5-0ubuntu0.12.10.2
- Ubuntu 12.04 LTS:
- libnspr4 4.9.5-0ubuntu0.12.04.2
- Ubuntu 10.04 LTS:
- libnspr4-0d 4.9.5-0ubuntu0.10.04.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart your session to make
all the necessary changes.