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Ubuntu Security Notice USN-1518-1

Ubuntu Security Notice USN-1518-1
Posted Jul 27, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1518-1 - Einar Lonn discovered that Bind incorrectly initialized the failing-query cache. A remote attacker could use this flaw to cause Bind to crash, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2012-3817
SHA-256 | 3d0ddb3b9dfdfce53ffb5fa8e80b39f4750379ce56031234612f3165b79c9331

Ubuntu Security Notice USN-1518-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1518-1
July 26, 2012

bind9 vulnerability
============================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

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

Software Description:
- bind9: Internet Domain Name Server

Details:

Einar Lonn discovered that Bind incorrectly initialized the failing-query
cache. A remote attacker could use this flaw to cause Bind to crash,
resulting in a denial of service.

Update instructions:

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

Ubuntu 12.04 LTS:
libdns81 1:9.8.1.dfsg.P1-4ubuntu0.2

Ubuntu 11.10:
libdns69 1:9.7.3.dfsg-1ubuntu4.3

Ubuntu 11.04:
libdns69 1:9.7.3.dfsg-1ubuntu2.5

Ubuntu 10.04 LTS:
libdns64 1:9.7.0.dfsg.P1-1ubuntu0.6

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

References:
http://www.ubuntu.com/usn/usn-1518-1
CVE-2012-3817

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.2
https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu4.3
https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu2.5
https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.6
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