USN-6097-1: Linux PTP vulnerability

Publication date

29 May 2023

Overview

Linux PTP could be made to crash, run arbitrary code, or expose sensitive information if it received specially crafted input.


Packages

  • linuxptp - Precision Time Protocol (PTP, IEEE1588) implementation for Linux

Details

It was discovered that Linux PTP did not properly perform a length check
when forwarding a PTP message between ports. A remote attacker could
possibly use this issue to access sensitive information, execute
arbitrary code, or cause a denial of service.

It was discovered that Linux PTP did not properly perform a length check
when forwarding a PTP message between ports. A remote attacker could
possibly use this issue to access sensitive information, execute
arbitrary code, or cause a denial of service.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 LTS focal linuxptp –  1.9.2-1ubuntu0.1
18.04 LTS bionic linuxptp –  1.8-1ubuntu0.1
16.04 LTS xenial linuxptp –  1.6-1ubuntu0.1~esm1  

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