USN-1752-1: GnuTLS vulnerability

Publication date

27 February 2013

Overview

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


Packages

Details

Nadhem Alfardan and Kenny Paterson discovered that the TLS protocol as used
in GnuTLS 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 GnuTLS 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

In general, a standard system update will 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
8.04 hardy libgnutls13 –  2.0.4-1ubuntu2.9
12.10 quantal libgnutls26 –  2.12.14-5ubuntu4.2
12.04 precise libgnutls26 –  2.12.14-5ubuntu3.2
11.10 oneiric libgnutls26 –  2.10.5-1ubuntu3.3
10.04 lucid libgnutls26 –  2.8.5-2ubuntu0.3

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