USN-1462-1: Bind vulnerabilities

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• bind9 - Internet Domain Name Server

Details

Dan Luther discovered that Bind incorrectly handled zero length rdata
fields. A remote attacker could use this flaw to cause Bind to crash or
behave erratically, resulting in a denial of service. (CVE-2012-1667)

It was discovered that Bind incorrectly handled revoked domain names. A
remote attacker could use this flaw to cause malicious domain names to be
continuously resolvable even after they have been revoked. (CVE-2012-1033)

Update instructions

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

Ubuntu 8.04

• libdns36 - 1:9.4.2.dfsg.P2-2ubuntu0.10

Ubuntu 12.04

• libdns81 - 1:9.8.1.dfsg.P1-4ubuntu0.1

Ubuntu 11.10

• libdns69 - 1:9.7.3.dfsg-1ubuntu4.2

Ubuntu 11.04

• libdns69 - 1:9.7.3.dfsg-1ubuntu2.4

Ubuntu 10.04

• libdns64 - 1:9.7.0.dfsg.P1-1ubuntu0.5

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

References

• CVE-2012-1033
• CVE-2012-1667