USN-1763-2: NSPR update

Publication date

14 March 2013

Overview

NSPR update to work with the new NSS.


Packages

  • nspr - NetScape Portable Runtime Library

Details

USN-1763-1 fixed a vulnerability in NSS. This update provides the NSPR
needed to use the new NSS.

Original advisory 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.

USN-1763-1 fixed a vulnerability in NSS. This update provides the NSPR
needed to use the new NSS.

Original advisory 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

After a standard system update you need to restart any applications that use NSPR, 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 libnspr4 –  4.9.5-0ubuntu0.12.10.1
12.04 precise libnspr4 –  4.9.5-0ubuntu0.12.04.1
11.10 oneiric libnspr4 –  4.9.5-0ubuntu0.11.10.1
10.04 lucid libnspr4-0d –  4.9.5-0ubuntu0.10.04.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›