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Ubuntu Security Notice USN-2693-1
July 28, 2015
bind9 vulnerabilities
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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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