{"schemaVersion":3,"id":"USN-6219-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"ruby2.3, ruby2.5, ruby2.7, ruby3.0, ruby3.1 vulnerabilities\n\nIt was discovered that Ruby incorrectly handled certain regular expressions.\nAn attacker could possibly use this issue to cause a denial of service.\nThis issue only affected Ubuntu 20.10 and Ubuntu 20.04 LTS.\n(CVE-2023-28755)\n\nIt was discovered that Ruby incorrectly handled certain regular expressions.\nAn attacker could possibly use this issue to cause a denial of service.\nThis issue exists because of an incomplete fix for CVE-2023-28755.\n(CVE-2023-36617)","dates":{"published":"2023-07-12T14:47:58.000Z","modified":"2026-06-25T13:32:11.662Z","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":"ruby2.3","name":"ruby2.3","label":"ruby2.3","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby2.3","purlType":"deb","versions":[{"text":"< 2.3.1-2~ubuntu16.04.16+esm8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.3.1-2~ubuntu16.04.16+esm8","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ruby2.5","name":"ruby2.5","label":"ruby2.5","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby2.5","purlType":"deb","versions":[{"text":"< 2.5.1-1ubuntu1.16+esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1-1ubuntu1.16+esm1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ruby2.7","name":"ruby2.7","label":"ruby2.7","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby2.7","purlType":"deb","versions":[{"text":"< 2.7.0-5ubuntu1.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.7.0-5ubuntu1.12","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ruby3.0","name":"ruby3.0","label":"ruby3.0","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby3.0","purlType":"deb","versions":[{"text":"< 3.0.2-7ubuntu2.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.0.2-7ubuntu2.4","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6219-1","label":"ubuntu.com/security/notices/USN-6219-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-28755","label":"ubuntu.com/security/CVE-2023-28755","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-36617","label":"ubuntu.com/security/CVE-2023-36617","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-28755","CVE-2023-36617"],"downstream":[],"duplicates":[],"related":["CVE-2023-28755","CVE-2023-36617"]},"timeline":[{"kind":"published","date":"2023-07-12T14:47:58.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:32:11.662Z","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":"2026-10-20T13:39:02.622Z","stale":false,"partial":false}}