Debian Security Advisory
DSA-4938-1 linuxptp -- security update
- Date Reported:
- 13 Jul 2021
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 990748.
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 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