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Ubuntu Security Notice USN-1843-1

Ubuntu Security Notice USN-1843-1
Posted May 29, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1843-1 - It was discovered that GnuTLS incorrectly handled certain padding bytes. A remote attacker could use this flaw to cause an application using GnuTLS to crash, leading to a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2013-2116
MD5 | 79d106eca2d2fa6d8a9e9dcca34bcbfc

Ubuntu Security Notice USN-1843-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1843-1
May 29, 2013

gnutls26 vulnerability
============================================================================

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

GnuTLS could be made to crash if it received specially crafted network
traffic.

Software Description:
- gnutls26: GNU TLS library

Details:

It was discovered that GnuTLS incorrectly handled certain padding bytes. A
remote attacker could use this flaw to cause an application using GnuTLS to
crash, leading to a denial of service.

Update instructions:

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

Ubuntu 13.04:
libgnutls26 2.12.23-1ubuntu1.1

Ubuntu 12.10:
libgnutls26 2.12.14-5ubuntu4.3

Ubuntu 12.04 LTS:
libgnutls26 2.12.14-5ubuntu3.4

Ubuntu 10.04 LTS:
libgnutls26 2.8.5-2ubuntu0.4

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1843-1
CVE-2013-2116

Package Information:
https://launchpad.net/ubuntu/+source/gnutls26/2.12.23-1ubuntu1.1
https://launchpad.net/ubuntu/+source/gnutls26/2.12.14-5ubuntu4.3
https://launchpad.net/ubuntu/+source/gnutls26/2.12.14-5ubuntu3.4
https://launchpad.net/ubuntu/+source/gnutls26/2.8.5-2ubuntu0.4

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