{"id":"UBUNTU-CVE-2025-43972","details":"An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.","modified":"2026-01-30T01:59:03.845865Z","published":"2025-04-21T01:15:00Z","related":["USN-7661-1"],"upstream":["CVE-2025-43972"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-43972"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-43972"},{"type":"REPORT","url":"https://github.com/osrg/gobgp/compare/v3.34.0...v3.35.0"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7661-1"}],"affected":[{"package":{"name":"gobgp","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/gobgp@1.29-1ubuntu0.1+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29-1ubuntu0.1+esm1"}]}],"versions":["1.15-1","1.29-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.29-1ubuntu0.1+esm1","binary_name":"gobgpd"},{"binary_version":"1.29-1ubuntu0.1+esm1","binary_name":"golang-github-osrg-gobgp-dev"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43972.json"}},{"package":{"name":"gobgp","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/gobgp@2.12.0-1ubuntu0.1~esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.0-1ubuntu0.1~esm2"}]}],"versions":["1.33-1","2.11.0-1","2.12.0-1","2.12.0-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.12.0-1ubuntu0.1~esm2","binary_name":"gobgpd"},{"binary_version":"2.12.0-1ubuntu0.1~esm2","binary_name":"golang-github-osrg-gobgp-dev"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43972.json"}},{"package":{"name":"gobgp","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/gobgp@2.25.0-3ubuntu0.1+esm2?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25.0-3ubuntu0.1+esm2"}]}],"versions":["2.25.0-2","2.25.0-3","2.25.0-3build1","2.25.0-3ubuntu0.1","2.25.0-3ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.25.0-3ubuntu0.1+esm2","binary_name":"gobgpd"},{"binary_version":"2.25.0-3ubuntu0.1+esm2","binary_name":"golang-github-osrg-gobgp-dev"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43972.json"}},{"package":{"name":"gobgp","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/gobgp@3.23.0-1ubuntu0.3+esm2?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.23.0-1ubuntu0.3+esm2"}]}],"versions":["3.16.0-1build1","3.19.0-1","3.21.0-1","3.23.0-1","3.23.0-1ubuntu0.1","3.23.0-1ubuntu0.2","3.23.0-1ubuntu0.2+esm1","3.23.0-1ubuntu0.3","3.23.0-1ubuntu0.3+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.23.0-1ubuntu0.3+esm2","binary_name":"gobgpd"},{"binary_version":"3.23.0-1ubuntu0.3+esm2","binary_name":"golang-github-osrg-gobgp-dev"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43972.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}