{"schemaVersion":3,"id":"UBUNTU-CVE-2025-0306","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service.","dates":{"published":"2025-01-09T04:15:00.000Z","modified":"2026-02-04T02:48:02.100Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.4,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","exploitability":5.6,"impact":8.7,"computed":true}]},"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":"jruby","name":"jruby","label":"jruby","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/jruby","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"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":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ruby3.2","name":"ruby3.2","label":"ruby3.2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby3.2","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"ruby3.3","name":"ruby3.3","label":"ruby3.3","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/ruby3.3","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":7,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/CVE-2025-0306","label":"ubuntu.com/security/CVE-2025-0306","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-0306","label":"www.cve.org/CVERecord?id=CVE-2025-0306","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2336100","label":"bugzilla.redhat.com/show_bug.cgi?id=2336100","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://access.redhat.com/security/cve/CVE-2025-0306","label":"access.redhat.com/security/cve/CVE-2025-0306","hostname":"access.redhat.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2025-0306"]},"timeline":[{"kind":"published","date":"2025-01-09T04:15:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-04T02:48:02.100Z","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":"2026-10-20T22:07:11.747Z","stale":false,"partial":false}}