USN-7661-1: GoBGP vulnerabilities

USN-7661-1: GoBGP vulnerabilities
Publication date: 22 July 2025
Overview: Several security issues were fixed in GoBGP.

Packages
gobgp - BGP implementation in Go

Details
It was discovered that GoBGP did not properly manage memory under
certain circumstances, which could lead to a buffer overflow. An
attacker could possibly use this issue to cause a denial of service. This
issue was only addressed in Ubuntu 22.04 LTS and Ubuntu 20.04 LTS.
(CVE-2023-46565)

It was discovered that GoBGP did not properly verify the length of
certain inputs. An attacker could possibly use this issue to cause a
panic resulting in a denial of service.
(CVE-2025-43970, CVE-2025-43971, CVE-2025-43972, CVE-2025-43973)

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

Ubuntu Release Package Version
24.04 noble

• gobgpd – 3.23.0-1ubuntu0.3+esm2
• golang-github-osrg-gobgp-dev – 3.23.0-1ubuntu0.3+esm2
  22.04 jammy
• gobgpd – 2.25.0-3ubuntu0.1+esm2
• golang-github-osrg-gobgp-dev – 2.25.0-3ubuntu0.1+esm2
  20.04 focal
• gobgpd – 2.12.0-1ubuntu0.1~esm2
• golang-github-osrg-gobgp-dev – 2.12.0-1ubuntu0.1~esm2
  18.04 bionic
• gobgpd – 1.29-1ubuntu0.1+esm1
• golang-github-osrg-gobgp-dev – 1.29-1ubuntu0.1+esm1