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Debian Stretch LTS DLA-2723-1: linuxptp Critical Denial Of Service Advisory

debian lts
Calendar Grey July 30, 2021
Dist Debian Esm H88
An upgrade for linuxptp on Debian LTS addresses vulnerabilities that could lead to service interruption and other security risks. Immediate action to upgrade is advised.
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...
Topics%20covered

Topics Covered

security advisory denial of service information leak critical remote code execution debian linuxptp

Summary

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/source-package/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



Severity
critical
Lowest
Low
Medium
High
Critical

Package: linuxptp
Version: 1.8-1+deb9u1
CVE ID: CVE-2021-3570

Topics%20covered

Topics Covered

security advisory denial of service information leak critical remote code execution debian linuxptp

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