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Ubuntu: USN-6097-1 Critical: linuxptp Code Execution Threat

ubuntu
Calendar Grey May 29, 2023
Dist Ubuntu Esm H88
The PTP flaw in Linux on Ubuntu platforms might lead to system failures, enable unauthorized script execution, or reveal confidential data.
Linux PTP could be made to crash, run arbitrary code, or expose sensitive information if it received specially crafted input.

Summary

Linux PTP could be made to crash, run arbitrary code, or expose

sensitive information if it received specially crafted input.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory denial of service code execution ubuntu sensitive information linuxptp

Update Instructions

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

Ubuntu 20.04 LTS:
linuxptp 1.9.2-1ubuntu0.1

Ubuntu 18.04 LTS:
linuxptp 1.8-1ubuntu0.1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
linuxptp 1.6-1ubuntu0.1~esm1

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

References

https://ubuntu.com/security/notices/USN-6097-1

CVE-2021-3570

Severity
critical
Lowest
Low
Medium
High
Critical

May 29, 2023

Topics%20covered

Topics Covered

security advisory denial of service code execution ubuntu sensitive information linuxptp

Package Information

https://launchpad.net/ubuntu/+source/linuxptp/1.9.2-1ubuntu0.1
https://launchpad.net/ubuntu/+source/linuxptp/1.8-1ubuntu0.1

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