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Ubuntu Security Notice USN-2693-1

Ubuntu Security Notice USN-2693-1
Posted Jul 29, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2693-1 - Jonathan Foote discovered that Bind incorrectly handled certain TKEY queries. A remote attacker could use this issue with a specially crafted packet to cause Bind to crash, resulting in a denial of service. Pories Ediansyah discovered that Bind incorrectly handled certain configurations involving DNS64. A remote attacker could use this issue with a specially crafted query to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2012-5689, CVE-2015-5477
SHA-256 | 411a9a7a936c5f60b5b0c9ee6179ab5f35060ebe8eb34ca0a134a30178867dec

Ubuntu Security Notice USN-2693-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2693-1
July 28, 2015

bind9 vulnerabilities
============================================================================

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

- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

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

Software Description:
- bind9: Internet Domain Name Server

Details:

Jonathan Foote discovered that Bind incorrectly handled certain TKEY
queries. A remote attacker could use this issue with a specially crafted
packet to cause Bind to crash, resulting in a denial of service.
(CVE-2015-5477)

Pories Ediansyah discovered that Bind incorrectly handled certain
configurations involving DNS64. A remote attacker could use this issue with
a specially crafted query to cause Bind to crash, resulting in a denial of
service. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-5689)

Update instructions:

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

Ubuntu 15.04:
bind9 1:9.9.5.dfsg-9ubuntu0.2

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.4

Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.12

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

References:
http://www.ubuntu.com/usn/usn-2693-1
CVE-2012-5689, CVE-2015-5477

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-9ubuntu0.2
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.4
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.12
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