USN-1763-1: NSS vulnerability

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04

Packages

• nss - Network Security Service library

Details

Nadhem Alfardan and Kenny Paterson discovered that the TLS protocol as used
in NSS was vulnerable to a timing side-channel attack known as the
"Lucky Thirteen" issue. A remote attacker could use this issue to perform
plaintext-recovery attacks via analysis of timing data.

Update instructions

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

Ubuntu 12.10

• libnss3 - 3.14.3-0ubuntu0.12.10.1

Ubuntu 12.04

• libnss3 - 3.14.3-0ubuntu0.12.04.1

Ubuntu 11.10

• libnss3 - 3.14.3-0ubuntu0.11.10.1

Ubuntu 10.04

• libnss3-1d - 3.14.3-0ubuntu0.10.04.1

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

References

• CVE-2013-1620