[USN-6323-1] FRR vulnerability

Mark Esler mark.esler at canonical.com
Thu Aug 31 03:03:53 UTC 2023

Ubuntu Security Notice USN-6323-1
August 31, 2023

frr vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.04 LTS


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

Software Description:
- frr: FRRouting suite of internet protocols


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:

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.


Package Information:

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