{"schemaVersion":3,"id":"USN-5079-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"curl vulnerabilities\n\nIt was discovered that curl incorrect handled memory when sending data to\nan MQTT server. A remote attacker could use this issue to cause curl to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2021-22945)\n\nPatrick Monnerat discovered that curl incorrectly handled upgrades to TLS.\nWhen receiving certain responses from servers, curl would continue without\nTLS even when the option to require a successful upgrade to TLS was\nspecified. (CVE-2021-22946)\n\nPatrick Monnerat discovered that curl incorrectly handled responses\nreceived before STARTTLS. A remote attacker could possibly use this issue\nto inject responses and intercept communications. (CVE-2021-22947)","dates":{"published":"2021-09-15T11:11:13.000Z","modified":"2026-04-27T09:19:03.013Z","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":"curl","name":"curl","label":"curl","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/curl","purlType":"deb","versions":[{"text":"< 7.58.0-2ubuntu3.15","noFixRecorded":false,"fixedIn":null},{"text":"< 7.68.0-1ubuntu2.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.58.0-2ubuntu3.15 | < 7.68.0-1ubuntu2.7","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5079-1","label":"ubuntu.com/security/notices/USN-5079-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-22945","label":"ubuntu.com/security/CVE-2021-22945","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-22946","label":"ubuntu.com/security/CVE-2021-22946","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-22947","label":"ubuntu.com/security/CVE-2021-22947","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-22945","CVE-2021-22946","CVE-2021-22947"],"downstream":[],"duplicates":[],"related":["CVE-2021-22945","CVE-2021-22946","CVE-2021-22947"]},"timeline":[{"kind":"published","date":"2021-09-15T11:11:13.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T09:19:03.013Z","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":"2026-10-19T08:40:56.227Z","stale":false,"partial":false}}