A libtirpc security update has been released for Debian GNU/Linux 11 to address an issue that may result in a denial of service.

DSA 5200-1: libtirpc security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5200-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
August 07, 2022   https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : libtirpc
CVE ID : CVE-2021-46828
Debian Bug : 1015873

It was discovered that libtirpc, a transport-independent RPC library,
does not properly handle idle TCP connections. A remote attacker can
take advantage of this flaw to cause a denial of service.

For the stable distribution (bullseye), this problem has been fixed in
version 1.3.1-1+deb11u1.

We recommend that you upgrade your libtirpc packages.

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

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/