{"schemaVersion":3,"id":"USN-6411-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"exim4 vulnerabilities\n\nIt was discovered that Exim incorrectly handled certain challenge requests.\nA remote attacker could possibly use this issue to perform out-of-bounds\nreads, resulting in information leakage. (CVE-2023-42114)\n\nIt was discovered that Exim incorrectly handled validation of user-supplied\ndata. A remote attacker could possibly use this issue to perform\nout-of-bounds writes, resulting in arbitrary code execution. This issue\nonly affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04.\n(CVE-2023-42115)\n\nIt was discovered that Exim incorrectly handled certain challenge requests.\nA remote attacker could possibly use this issue to perform out-of-bounds\nwrites, resulting in arbitrary code execution. (CVE-2023-42116)","dates":{"published":"2023-10-04T13:41:19.000Z","modified":"2026-06-29T13:50:58.686Z","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":"exim4","name":"exim4","label":"exim4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/exim4","purlType":"deb","versions":[{"text":"< 4.82-3ubuntu2.4+esm6","noFixRecorded":false,"fixedIn":null},{"text":"< 4.86.2-2ubuntu2.6+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 4.90.1-1ubuntu1.10+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 4.93-13ubuntu1.8","noFixRecorded":false,"fixedIn":null},{"text":"< 4.95-4ubuntu2.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.82-3ubuntu2.4+esm6 | < 4.86.2-2ubuntu2.6+esm4 | < 4.90.1-1ubuntu1.10+esm1 | < 4.93-13ubuntu1.8 | < 4.95-4ubuntu2.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6411-1","label":"ubuntu.com/security/notices/USN-6411-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-42114","label":"ubuntu.com/security/CVE-2023-42114","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42115","label":"ubuntu.com/security/CVE-2023-42115","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-42116","label":"ubuntu.com/security/CVE-2023-42116","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-42114","CVE-2023-42115","CVE-2023-42116"],"downstream":[],"duplicates":[],"related":["CVE-2023-42114","CVE-2023-42115","CVE-2023-42116"]},"timeline":[{"kind":"published","date":"2023-10-04T13:41:19.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-29T13:50:58.686Z","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":"2026-10-20T12:18:59.416Z","stale":false,"partial":false}}