[USN-1763-1] NSS vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2013-03-24T00:00:00


========================================================================== Ubuntu Security Notice USN-1763-1 March 14, 2013

nss vulnerability

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

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


NSS could be made to expose sensitive information over the network.

Software Description: - nss: Network Security Service library


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 LTS: libnss3 3.14.3-0ubuntu0.12.04.1

Ubuntu 11.10: libnss3 3.14.3-0ubuntu0.11.10.1

Ubuntu 10.04 LTS: 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: http://www.ubuntu.com/usn/usn-1763-1 CVE-2013-1620

Package Information: https://launchpad.net/ubuntu/+source/nss/3.14.3-0ubuntu0.12.10.1 https://launchpad.net/ubuntu/+source/nss/3.14.3-0ubuntu0.12.04.1 https://launchpad.net/ubuntu/+source/nss/3.14.3-0ubuntu0.11.10.1 https://launchpad.net/ubuntu/+source/nss/3.14.3-0ubuntu0.10.04.1

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