Debian Security Advisory

DLA-3326-1 isc-dhcp -- LTS security update

Date Reported:
20 Feb 2023
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 1022969.
More information:

Under not completely understood conditions, dhclient completely removes IPv6 addresses from use and is unable to restore them.

For Debian 10 buster, this problem has been fixed in version 4.4.1-2+deb10u3.

We recommend that you upgrade your isc-dhcp packages.

For the detailed security status of isc-dhcp please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: