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Ubuntu Security Notice USN-7230-1
January 27, 2025

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

- Ubuntu 18.04 LTS

Summary:

Quagga could be made to crash if it received specially crafted network traffic.

Software Description:
- quagga: BGP/OSPF/RIP routing daemon

Details:

Iggy Frankovic discovered that Quagga incorrectly handled certain BGP
messages. A remote attacker could possibly use this issue to cause Quagga
to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS
  quagga                          1.2.4-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  quagga-bgpd                     1.2.4-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro

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

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