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USN-1519-1: DHCP vulnerabilities

26 July 2012

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

Releases

Packages

Details

Markus Hietava discovered that the DHCP server incorrectly handled certain
malformed client identifiers. A remote attacker could use this issue to
cause DHCP to crash, resulting in a denial of service. (CVE-2012-3571)

Glen Eustace discovered that the DHCP server incorrectly handled memory. A
remote attacker could use this issue to cause DHCP to crash, resulting in a
denial of service. (CVE-2012-3954)

Update instructions

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

Ubuntu 12.04
Ubuntu 11.10
Ubuntu 11.04

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