Debian DSA-5734-1: Critical Bind9 Updates for Denial of Service Risks

To mitigate CVE-2024-1737 two new configuration statements have been
added to allow operators of secondary servers and recursive resolvers to
set an upper bound on the growth of data in their zones or caches.
Details can be found at:
https://kb.isc.org/docs/rrset-limits-in-zones

For the oldstable distribution (bullseye), these problems have been
fixed in version 1:9.16.50-1~deb11u1. For the oldstable distribution
(bullseye) the limits to mitigate CVE-2024-1737 are hardcoded and not
configurable.

For the stable distribution (bookworm), these problems have been fixed in
version 1:9.18.28-1~deb12u1.

We recommend that you upgrade your bind9 packages.

For the detailed security status of bind9 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/source-package/bind9

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/