USN-7230-2: FRR vulnerabilities

USN-7230-2: FRR vulnerabilities
27 January 2025

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

Releases
Ubuntu 24.10 Ubuntu 24.04 LTS Ubuntu 22.04 LTS Ubuntu 20.04 LTS

Packages
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
• frr - 8.4.4-1.1ubuntu6.3
  Ubuntu 22.04
• frr - 8.1-1ubuntu1.13
  Ubuntu 20.04
• frr - 7.2.1-1ubuntu0.2+esm3

Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.