1. Ubuntu Security Notices
  2. USN-4475-1

USN-4475-1: Chrony vulnerability

Publication date

27 August 2020

Overview

Chrony could be made to crash or expose sensitive information.

Releases

Packages

  • chrony - An implementation of the Network Time Protocol

Details

It was discovered that Chrony incorrectly handled certain symbolic links.
An attacker could possibly use this issue to cause a denial of service or
expose sensitive information.

It was discovered that Chrony incorrectly handled certain symbolic links.
An attacker could possibly use this issue to cause a denial of service or
expose sensitive information.

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 focal chrony –  3.5-6ubuntu6.2
18.04 bionic chrony –  3.2-4ubuntu4.5

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References

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