USN-531-1 fixed vulnerabilities in dhcp. The fixes were incomplete, and only reduced the scope of the vulnerability, without fully solving it. This update fixes the problem.
Original advisory details:
23 October 2007
A security issue affects these releases of Ubuntu and its derivatives:
USN-531-1 fixed vulnerabilities in dhcp. The fixes were incomplete, and only reduced the scope of the vulnerability, without fully solving it. This update fixes the problem.
Original advisory details:
Nahuel Riva and Gerardo Richarte discovered that the DHCP server did not correctly handle certain client options. A remote attacker could send malicious DHCP replies to the server and execute arbitrary code.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the necessary changes.
Vulmon