[USN-7230-2] FRR vulnerabilities

[John Breton]

==========================================================================
Ubuntu Security Notice USN-7230-2
January 27, 2025

frr vulnerabilities
==========================================================================

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

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

FRR could be made to crash or exhibit degraded performance if it received
specially crafted network traffic.

Software Description:
- frr: FRRouting suite of internet protocols

Details:

Iggy Frankovic discovered that FRR incorrectly handled certain BGP
messages. A remote attacker could possibly use this issue to cause FRR to
crash, resulting in a denial of service. This issue only affected Ubuntu
20.04 LTS. (CVE-2024-44070)

It was discovered that FRR re-validated all routes in certain instances
when the internal socket's buffer size overflowed. A remote attacker could
possibly use this issue to impact the performance of FRR, resulting in a
denial of service. (CVE-2024-55553)

Update instructions:

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

Ubuntu 24.10
   frr                             10.0.1-0.1ubuntu3

Ubuntu 24.04 LTS
   frr                             8.4.4-1.1ubuntu6.3

Ubuntu 22.04 LTS
   frr                             8.1-1ubuntu1.13

Ubuntu 20.04 LTS
   frr                             7.2.1-1ubuntu0.2+esm3
                                   Available with Ubuntu Pro

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

References:
   https://ubuntu.com/security/notices/USN-7230-2
   https://ubuntu.com/security/notices/USN-7230-1
   CVE-2024-44070, CVE-2024-55553

Package Information:
   https://launchpad.net/ubuntu/+source/frr/10.0.1-0.1ubuntu3
   https://launchpad.net/ubuntu/+source/frr/8.4.4-1.1ubuntu6.3
   https://launchpad.net/ubuntu/+source/frr/8.1-1ubuntu1.13

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