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USN-6323-1: FRR vulnerability

31 August 2023

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

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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.

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.04
Ubuntu 22.04

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

References

Related notices

  • USN-6136-1: frr-snmp, frr-pythontools, frr-doc, frr, frr-rpki-rtrlib
  • USN-6807-1: frr-snmp, frr-pythontools, frr-doc, frr, frr-rpki-rtrlib

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Further reading