{"schemaVersion":3,"id":"USN-5111-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"strongswan vulnerabilities\n\nIt was discovered that strongSwan incorrectly handled certain RSASSA-PSS\nsignatures. A remote attacker could use this issue to cause strongSwan to\ncrash, resulting in a denial of service. (CVE-2021-41990)\n\nIt was discovered that strongSwan incorrectly handled replacing\ncertificates in the cache. A remote attacker could use this issue to cause\nstrongSwan to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2021-41991)","dates":{"published":"2021-10-19T10:54:55.000Z","modified":"2026-04-27T15:57:38.055Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"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":[],"affected":[{"vendor":"ubuntu","product":"strongswan","name":"strongswan","label":"strongswan","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/strongswan","purlType":"deb","versions":[{"text":"< 5.6.2-1ubuntu2.7","noFixRecorded":false,"fixedIn":null},{"text":"< 5.8.2-1ubuntu3.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.6.2-1ubuntu2.7 | < 5.8.2-1ubuntu3.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5111-1","label":"ubuntu.com/security/notices/USN-5111-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-41990","label":"ubuntu.com/security/CVE-2021-41990","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-41991","label":"ubuntu.com/security/CVE-2021-41991","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-41990","CVE-2021-41991"],"downstream":[],"duplicates":[],"related":["CVE-2021-41990","CVE-2021-41991"]},"timeline":[{"kind":"published","date":"2021-10-19T10:54:55.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:57:38.055Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:33:29.915Z","stale":false,"partial":false}}