{"schemaVersion":3,"id":"USN-4349-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"edk2 vulnerabilities\n\nA buffer overflow was discovered in the network stack. An unprivileged user\ncould potentially enable escalation of privilege and/or denial of service.\nThis issue was already fixed in a previous release for 18.04 LTS and 19.10.\n(CVE-2018-12178)\n\nA buffer overflow was discovered in BlockIo service. An unauthenticated user\ncould potentially enable escalation of privilege, information disclosure and/or\ndenial of service. This issue was already fixed in a previous release for 18.04\nLTS and 19.10. (CVE-2018-12180)\n\nA stack overflow was discovered in bmp. An unprivileged user\ncould potentially enable denial of service or elevation of privilege via\nlocal access. This issue was already fixed in a previous release for 18.04\nLTS and 19.10. (CVE-2018-12181)\n\nIt was discovered that memory was not cleared before free that could lead\nto potential password leak. (CVE-2019-14558)\n\nA memory leak was discovered in ArpOnFrameRcvdDpc. An attacker could\npossibly use this issue to cause a denial of service or other unspecified\nimpact. (CVE-2019-14559)\n\nAn integer overflow was discovered in MdeModulePkg/PiDxeS3BootScriptLib.\nAn attacker could possibly use this issue to cause a denial of service or\nother unspecified impact. (CVE-2019-14563)\n\nIt was discovered that the affected version doesn't properly check whether an\nunsigned EFI file should be allowed or not. An attacker could possibly load\nunsafe content by bypassing the verification. (CVE-2019-14575)\n\nIt was discovered that original configuration runtime memory is freed, but it\nis still exposed to the OS runtime. (CVE-2019-14586)\n\nA double-unmap was discovered in TRB creation. An attacker could use it to\ncause a denial of service or other unspecified impact. (CVE-2019-14587)","dates":{"published":"2020-04-30T22:54:56.000Z","modified":"2026-02-10T04:41:49.000Z","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":"edk2","name":"edk2","label":"edk2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/edk2","purlType":"deb","versions":[{"text":"< 0~20160408.ffea0a2c-2ubuntu0.1","noFixRecorded":false,"fixedIn":null},{"text":"< 0~20180205.c0d9813c-2ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0~20160408.ffea0a2c-2ubuntu0.1 | < 0~20180205.c0d9813c-2ubuntu0.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4349-1","label":"ubuntu.com/security/notices/USN-4349-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-12178","label":"ubuntu.com/security/CVE-2018-12178","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-12180","label":"ubuntu.com/security/CVE-2018-12180","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-12181","label":"ubuntu.com/security/CVE-2018-12181","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14558","label":"ubuntu.com/security/CVE-2019-14558","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14559","label":"ubuntu.com/security/CVE-2019-14559","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14563","label":"ubuntu.com/security/CVE-2019-14563","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14575","label":"ubuntu.com/security/CVE-2019-14575","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14586","label":"ubuntu.com/security/CVE-2019-14586","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-14587","label":"ubuntu.com/security/CVE-2019-14587","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2018-12178","CVE-2018-12180","CVE-2018-12181","CVE-2019-14558","CVE-2019-14559","CVE-2019-14563","CVE-2019-14575","CVE-2019-14586","CVE-2019-14587"],"downstream":[],"duplicates":[],"related":["CVE-2018-12178","CVE-2018-12180","CVE-2018-12181","CVE-2019-14558","CVE-2019-14559","CVE-2019-14563","CVE-2019-14575","CVE-2019-14586","CVE-2019-14587"]},"timeline":[{"kind":"published","date":"2020-04-30T22:54:56.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:49.000Z","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":"2026-10-20T01:35:22.538Z","stale":false,"partial":false}}