A linuxptp security update has been released for Debian GNU/Linux 10 to address a denial of service, information leak, or potentially remote code execution.

DSA 4938-1: linuxptp security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4938-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
July 13, 2021   https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : linuxptp
CVE ID : CVE-2021-3570
Debian Bug : 990748

Miroslav Lichvar reported that the ptp4l program in linuxptp, an
implementation of the Precision Time Protocol (PTP), does not validate
the messageLength field of incoming messages, allowing a remote attacker
to cause a denial of service, information leak, or potentially remote
code execution.

For the stable distribution (buster), this problem has been fixed in
version 1.9.2-1+deb10u1.

We recommend that you upgrade your linuxptp packages.

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

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/