{"id":"UBUNTU-CVE-2023-38802","details":"FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).","modified":"2026-02-05T03:01:58.013083Z","published":"2023-08-28T00:00:00Z","related":["USN-6323-1","USN-6807-1"],"upstream":["CVE-2023-38802"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-38802"},{"type":"REPORT","url":"https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling"},{"type":"REPORT","url":"https://kb.cert.org/vuls/id/347067"},{"type":"REPORT","url":"https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6323-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-38802"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6807-1"}],"affected":[{"package":{"name":"frr","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/frr@7.2.1-1ubuntu0.2+esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.1-1ubuntu0.2+esm2"}]}],"versions":["6.0.2-2build2","7.2-1ubuntu1","7.2-1ubuntu2","7.2.1-1","7.2.1-1ubuntu0.1","7.2.1-1ubuntu0.2","7.2.1-1ubuntu0.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"frr","binary_version":"7.2.1-1ubuntu0.2+esm2"},{"binary_name":"frr-pythontools","binary_version":"7.2.1-1ubuntu0.2+esm2"},{"binary_name":"frr-rpki-rtrlib","binary_version":"7.2.1-1ubuntu0.2+esm2"},{"binary_name":"frr-snmp","binary_version":"7.2.1-1ubuntu0.2+esm2"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38802.json"}},{"package":{"name":"frr","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/frr@8.1-1ubuntu1.5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.1-1ubuntu1.5"}]}],"versions":["7.5.1-1.1","8.1-1","8.1-1ubuntu1","8.1-1ubuntu1.1","8.1-1ubuntu1.2","8.1-1ubuntu1.3","8.1-1ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_name":"frr","binary_version":"8.1-1ubuntu1.5"},{"binary_name":"frr-pythontools","binary_version":"8.1-1ubuntu1.5"},{"binary_name":"frr-rpki-rtrlib","binary_version":"8.1-1ubuntu1.5"},{"binary_name":"frr-snmp","binary_version":"8.1-1ubuntu1.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-38802.json"}}],"schema_version":"1.7.3","severity":[{"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"}]}