{"schemaVersion":3,"id":"USN-6533-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux-oem-6.1 vulnerabilities\n\nTom Dohrmann discovered that the Secure Encrypted Virtualization (SEV)\nimplementation for AMD processors in the Linux kernel contained a race\ncondition when accessing MMIO registers. A local attacker in a SEV guest VM\ncould possibly use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-46813)\n\nIt was discovered that the io_uring subsystem in the Linux kernel contained\na race condition, leading to a null pointer dereference vulnerability. A\nlocal attacker could use this to cause a denial of service (system crash).\n(CVE-2023-46862)","dates":{"published":"2023-12-05T21:59:34.000Z","modified":"2026-06-03T13:34:36.363Z","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":"linux-oem-6.1","name":"linux-oem-6.1","label":"linux-oem-6.1","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-oem-6.1","purlType":"deb","versions":[{"text":"< 6.1.0-1027.27","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.1.0-1027.27","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6533-1","label":"ubuntu.com/security/notices/USN-6533-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-46813","label":"ubuntu.com/security/CVE-2023-46813","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-46862","label":"ubuntu.com/security/CVE-2023-46862","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-46813","CVE-2023-46862"],"downstream":[],"duplicates":[],"related":["CVE-2023-46813","CVE-2023-46862"]},"timeline":[{"kind":"published","date":"2023-12-05T21:59:34.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-03T13:34:36.363Z","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":"2026-10-20T19:12:02.732Z","stale":false,"partial":false}}