{"schemaVersion":3,"id":"MGASA-2026-0348","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated clamav packages fix security vulnerabilities\n\nAn indexing error while converting GPT partition names that could read or\nwrite beyond a stack-allocated partition entry. (CVE-2026-20345)\nAn integer overflow in the PESpin unpacker that could allocate an\nundersized buffer and then write beyond it while rebuilding a PE file.\n(CVE-2026-20339)\nAn integer underflow in the PDF parser that could cause a crash while\nreading a malformed hex string. (CVE-2026-20346)\nUndefined behavior and integer overflow in the Mach-O parser that could\ncause a crash while scanning a malformed Mach-O file. (CVE-2026-20347)\nXAR parser size handling that could request an excessive allocation or\nexceed scan limits while decompressing a malformed table of contents.\n(CVE-2026-20348)","dates":{"published":"2026-08-31T19:40:26.000Z","modified":"2026-09-01T03:15:03.645Z","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":"mageia","product":"clamav","name":"clamav","label":"clamav","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/clamav","purlType":"rpm","versions":[{"text":"< 1.4.6-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.4.6-1.mga10","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0348.html","label":"advisories.mageia.org/MGASA-2026-0348.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=36180","label":"bugs.mageia.org/show_bug.cgi?id=36180","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://blog.clamav.net/2026/08/clamav-154-and-146-security-patch.html","label":"blog.clamav.net/2026/08/clamav-154-and-146-security-patch.html","hostname":"blog.clamav.net","tags":["WEB"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQHYDS3XT2PKXIDL3B6FNNJ3JT27FJ2T/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-20339","CVE-2026-20345","CVE-2026-20346","CVE-2026-20347","CVE-2026-20348"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-08-31T19:40:26.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-01T03:15:03.645Z","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":"2026-10-20T02:10:30.821Z","stale":false,"partial":false}}