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Ubuntu 20.04 & 18.04: USN-4475-1 Critical Chrony Vulnerability

ubuntu
Calendar Grey August 27, 2020
Dist Ubuntu Esm H88
Ubuntu's Chrony may face vulnerabilities that risk system stability or data leaks. Ensure safety by updating your software immediately.
Chrony could be made to crash or expose sensitive information.

Summary

Chrony could be made to crash or expose sensitive information.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu crash issue chrony sensitive exposure

Update Instructions

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

Ubuntu 20.04 LTS:
  chrony                          3.5-6ubuntu6.2

Ubuntu 18.04 LTS:
  chrony                          3.2-4ubuntu4.5

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

References

https://ubuntu.com/security/notices/USN-4475-1

CVE-2020-14367

Severity
critical
Lowest
Low
Medium
High
Critical

August 27, 2020

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu crash issue chrony sensitive exposure

Package Information

https://launchpad.net/ubuntu/+source/chrony/3.5-6ubuntu6.2
https://launchpad.net/ubuntu/+source/chrony/3.2-4ubuntu4.5

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