Debian Security Advisory - The versions of the ISC DHCP client in Debian 2.1 are vulnerable to a root exploit. A previous Debian security advisory addressed this issue with package versions 2.0b1pl6-0.3 and 2.0-3potato1, but ISC has released a newer patch since the original advisory. You should install the latest packages even if you upgraded when the last advisory was released.
Debian Security Advisory - The versions of the ISC DHCP client in Debian 2.1 are vulnerable to a root exploit. A previous Debian security advisory addressed this issue with package versions 2.0b1pl6-0.3 and 2.0-3potato1, but ISC has released a newer patch since the original advisory. You should install the latest packages even if you upgraded when the last advisory was released.