Alerts This Week
Warning Icon 1 758
Alerts This Week
Warning Icon 1 758

Ubuntu 23.04 and 22.04 LTS: USN-6323-1 Critical: FRR Denial Of Service

ubuntu
Calendar Grey August 31, 2023
Dist Ubuntu Esm H88
A vulnerability in FRR may result in unexpected session termination triggered by maliciously designed packets. It is suggested to apply updates for Ubuntu platforms.
FRR could be made to close sessions if it received speacially crafted network traffic.

Summary

FRR could be made to close sessions if it received speacially

crafted network traffic.

Software Description:

- frr: FRRouting suite of internet protocols

Details:

Ben Cartwright-Cox discovered that FRR did not handle RFC 7606

attributes properly. A remote attacker could possibly use this to

cause denial of service.

Topics%20covered

Topics Covered

security advisory ubuntu network threat dos frr session closure

Update Instructions

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

Ubuntu 23.04:
   frr                             8.4.2-1ubuntu1.3

Ubuntu 22.04 LTS:
   frr                             8.1-1ubuntu1.5

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

References

https://ubuntu.com/security/notices/USN-6323-1

CVE-2023-31490

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6323-1

Topics%20covered

Topics Covered

security advisory ubuntu network threat dos frr session closure

Package Information

https://launchpad.net/ubuntu/+source/frr/8.4.2-1ubuntu1.3
https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.5

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here