{"id":"CVE-2023-41909","details":"An issue was discovered in FRRouting FRR through 9.0. bgp_nlri_parse_flowspec in bgpd/bgp_flowspec.c processes malformed requests with no attributes, leading to a NULL pointer dereference.","modified":"2026-05-18T05:56:43.506378943Z","published":"2023-09-05T00:00:00Z","related":["ALSA-2024:2156","ALSA-2024:2981","SUSE-SU-2023:3709-1","SUSE-SU-2023:3762-1","SUSE-SU-2024:4090-1","openSUSE-SU-2024:13238-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/41xxx/CVE-2023-41909.json","cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/41xxx/CVE-2023-41909.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-41909"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/frrouting/frr","events":[{"introduced":"0"},{"fixed":"16c38045b1a84f899da473398779cc593d82d2bd"}]}],"versions":["base_8.5","frr-8.4-rc","base_8.4","frr-8.5-dev","base_8.3","frr-8.4-dev","base_8.2","frr-8.3-dev","frr-8.1-rc1","base_8.1","frr-8.2-dev","8.1-dev","frr-8.1-dev","base_8.0","base_7.6","frr-8.0-dev","frr-7.6-dev","base_7.5","base_7.4","frr-7.5-dev","base_7.3","frr-7.4-dev","base_7.2","frr-7.3-dev","frr-7.2-dev","7.1_pulled","frr-7.1-dev","frr-6.1-dev","frr-5.1-dev","reindent-master-after","reindent-master-before","frr-3.1-dev","frr-3.0-branchpoint"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-41909.json"}}],"schema_version":"1.7.5"}