USN-1540-1: NSS vulnerability

Releases

• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04

Packages

• nss - Network Security Service library

Details

Kaspar Brand discovered a vulnerability in how the Network Security
Services (NSS) ASN.1 decoder handles zero length items. If the user were
tricked into opening a specially crafted certificate, an attacker could
possibly exploit this to cause a denial of service via application crash.

Update instructions

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

Ubuntu 11.10

• libnss3-1d - 3.12.9+ckbi-1.82-0ubuntu6.1

Ubuntu 11.04

• libnss3-1d - 3.12.9+ckbi-1.82-0ubuntu2.2

Ubuntu 10.04

• libnss3-1d - 3.12.9+ckbi-1.82-0ubuntu0.10.04.4

After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.

References

• CVE-2012-0441

Related notices

• USN-1463-1: firefox
• USN-1463-4: thunderbird
• USN-1463-6: thunderbird
• USN-1540-2: nss, libnss3