{"schemaVersion":3,"id":"CVE-2023-41909","aliases":["UBUNTU-CVE-2023-41909","DEBIAN-CVE-2023-41909","openSUSE-SU-2024:13238-1"],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2023-09-05T00:00:00.000Z","modified":"2024-08-02T19:09:49.287Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01119,"percentile":0.6565,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01119},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01119,"percentile":0.6565}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01119,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01119,"percentile":0.6565}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-476","name":"NULL Pointer Dereference","description":"The product dereferences a pointer that it expects to be valid but is NULL.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/476.html"}],"affected":[{"vendor":"debian","product":"frr","name":"frr","label":"frr","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/frr","purlType":"deb","versions":[{"text":"< 8.4.4-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 8.4.4-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"frr","name":"frr","label":"frr","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/frr","purlType":"deb","versions":[{"text":"< 7.2.1-1ubuntu0.2+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 8.1-1ubuntu1.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.2.1-1ubuntu0.2+esm1 | < 8.1-1ubuntu1.6","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"10.0","eol":{"isEol":true,"eolDate":"2024-06-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"10","label":"10 (Buster)","eolFrom":"2024-06-30T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"10.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"37","noFixRecorded":false,"fixedIn":null},{"text":"38","noFixRecorded":false,"fixedIn":null},{"text":"39","noFixRecorded":false,"fixedIn":null}],"versionsText":"37 | 38 | 39","eol":{"isEol":true,"eolDate":"2023-12-05T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"37","label":"37","eolFrom":"2023-12-05T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"frrouting","product":"frrouting","name":"frrouting","label":"frrouting","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 9.0","eol":null,"hubHref":"/vendor/frrouting/frrouting"},{"vendor":"opensuse","product":"frr&distro=openSUSE Tumbleweed","name":"frr","label":"frr&distro=openSUSE Tumbleweed","ecosystem":"openSUSE","cpePart":null,"purl":"pkg:rpm/opensuse/frr&distro=openSUSE Tumbleweed","purlType":"rpm","versions":[{"text":"< 8.4-6.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 8.4-6.1","eol":null,"hubHref":null}],"affectedCount":6,"eol":{"hasEol":true,"count":2},"references":[{"url":"https://github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8","label":"github.com/FRRouting/frr/pull/13222/commits/cfd04dcb3e689754a72507d086ba3b9709fc5ed8","hostname":"github.com","tags":["REPORT","Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html","label":"lists.debian.org/debian-lts-announce/2023/09/msg00020.html","hostname":"lists.debian.org","tags":["Mailing List","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LMJNX44SMJM25JZO7XWHDQCOB4SNJPIE/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JLG64IF3FU7V76K4TKCCXVNEE6P2VUDO/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXR6PIVY4SWO7HDT4EY733H4X32SCPM4/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Mailing List"]},{"url":"https://ubuntu.com/security/CVE-2023-41909","label":"ubuntu.com/security/CVE-2023-41909","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://github.com/FRRouting/frr/commit/cfd04dcb3e689754a72507d086ba3b9709fc5ed8","label":"github.com/FRRouting/frr/commit/cfd04dcb3e689754a72507d086ba3b9709fc5ed8","hostname":"github.com","tags":["REPORT"]},{"url":"https://github.com/FRRouting/frr/commit/cc1a551cb007cc8ed8b1ea0605a7ab46c16de12b","label":"github.com/FRRouting/frr/commit/cc1a551cb007cc8ed8b1ea0605a7ab46c16de12b","hostname":"github.com","tags":["REPORT"]},{"url":"https://github.com/FRRouting/frr/commit/0a12b878082f77b67ad5d9b4782846ac738575a2","label":"github.com/FRRouting/frr/commit/0a12b878082f77b67ad5d9b4782846ac738575a2","hostname":"github.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-6436-1","label":"ubuntu.com/security/notices/USN-6436-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-41909","label":"www.cve.org/CVERecord?id=CVE-2023-41909","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-41909","label":"security-tracker.debian.org/tracker/CVE-2023-41909","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-41909","label":"www.suse.com/security/cve/CVE-2023-41909","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":["DLA-3573-1","DLA-3865-1","RHSA-2024:2156","RHSA-2024:2981","SUSE-SU-2023:3709-1","SUSE-SU-2023:3762-1","SUSE-SU-2024:4090-1","USN-6436-1"],"duplicates":[],"related":["SUSE-SU-2023:3709-1","SUSE-SU-2023:3762-1","SUSE-SU-2024:4090-1","USN-6436-1"]},"timeline":[{"kind":"published","date":"2023-09-05T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-02T19:09:49.287Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T08:24:25.489Z","stale":false,"partial":false}}