1. Ubuntu Security Notices
  2. USN-1763-1

USN-1763-1: NSS vulnerability

Publication date

14 March 2013

Overview

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

Releases

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.

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

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.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.10 quantal libnss3 –  3.14.3-0ubuntu0.12.10.1
12.04 precise libnss3 –  3.14.3-0ubuntu0.12.04.1
11.10 oneiric libnss3 –  3.14.3-0ubuntu0.11.10.1
10.04 lucid libnss3-1d –  3.14.3-0ubuntu0.10.04.1

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References

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