{"schemaVersion":3,"id":"USN-6634-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"dotnet6, dotnet7, dotnet8 vulnerabilities\n\nBrennan Conroy discovered that .NET with SignalR did not properly\nhandle malicious clients. An attacker could possibly use this issue\nto cause a denial of service. (CVE-2024-21386)\n\nBahaa Naamneh discovered that .NET with OpenSSL support did not\nproperly parse X509 certificates. An attacker could possibly use\nthis issue to cause a denial of service. (CVE-2024-21404)","dates":{"published":"2024-02-13T21:53:19.000Z","modified":"2026-02-10T04:43:30.000Z","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":"dotnet6","name":"dotnet6","label":"dotnet6","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/dotnet6","purlType":"deb","versions":[{"text":"< 6.0.127-0ubuntu1~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.0.127-0ubuntu1~22.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"dotnet7","name":"dotnet7","label":"dotnet7","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/dotnet7","purlType":"deb","versions":[{"text":"< 7.0.116-0ubuntu1~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.0.116-0ubuntu1~22.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"dotnet8","name":"dotnet8","label":"dotnet8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/dotnet8","purlType":"deb","versions":[{"text":"< 8.0.102-8.0.2-0ubuntu1~22.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 8.0.102-8.0.2-0ubuntu1~22.04.1","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6634-1","label":"ubuntu.com/security/notices/USN-6634-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-21386","label":"ubuntu.com/security/CVE-2024-21386","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2024-21404","label":"ubuntu.com/security/CVE-2024-21404","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2024-21386","CVE-2024-21404"],"downstream":[],"duplicates":[],"related":["CVE-2024-21386","CVE-2024-21404"]},"timeline":[{"kind":"published","date":"2024-02-13T21:53:19.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:43:30.000Z","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":"2026-10-20T08:28:59.962Z","stale":false,"partial":false}}