1. Ubuntu Security Notices
  2. USN-6323-1

USN-6323-1: FRR vulnerability

Publication date

31 August 2023

Overview

FRR could be made to close sessions if it received speacially crafted network traffic.

Releases

Packages

  • 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.

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.

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
23.04 lunar frr –  8.4.2-1ubuntu1.3
22.04 jammy frr –  8.1-1ubuntu1.5

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›