Debian Security Advisory
DLA-2723-1 linuxptp -- LTS security update
- Date Reported:
- 31 Jul 2021
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2021-3570.
- More information:
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 Debian 9 stretch, this problem has been fixed in version 1.8-1+deb9u1.
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 LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS