{"schemaVersion":3,"id":"CVE-2018-12178","aliases":["UBUNTU-CVE-2018-12178","DEBIAN-CVE-2018-12178"],"status":"published","duplicateOf":null,"title":null,"description":"Buffer overflow in network stack for EDK II may allow unprivileged user to potentially enable escalation of privilege and/or denial of service via network.","dates":{"published":"2019-03-27T19:19:31.000Z","modified":"2024-08-05T08:30:59.170Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.1,"severity":"critical","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.4,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":10,"impact":8.7,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Debian","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":10,"impact":8.7,"computed":true}]},"epss":{"probability":0.02271,"percentile":0.82801,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.02271},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02128,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02271,"percentile":0.82801}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02128,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02271,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02271,"percentile":0.82801}]},"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":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"debian","product":"edk2","name":"edk2","label":"edk2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/edk2","purlType":"deb","versions":[{"text":"< 0~20181115.85588389-3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0~20181115.85588389-3","eol":null,"hubHref":null},{"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},{"vendor":"extensible firmware interface development kit (edk ii)","product":"extensible firmware interface development kit (edk ii)","name":"Extensible Firmware Interface Development Kit (EDK II)","label":"extensible firmware interface development kit (edk ii)","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"N/A","noFixRecorded":false,"fixedIn":null}],"versionsText":"N/A","eol":null,"hubHref":"/vendor/extensible_firmware_interface_development_kit_edk_ii/extensible_firmware_interface_development_kit_edk_ii"},{"vendor":"tianocore","product":"edk_ii","name":"edk ii","label":"edk_ii","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/tianocore/edk_ii"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://edk2-docs.gitbooks.io/security-advisory/content/dns-pack-size-check.html","label":"edk2-docs.gitbooks.io/security-advisory/content/dns-pack-size-check.html","hostname":"edk2-docs.gitbooks.io","tags":["X Refsource CONFIRM","Patch","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00046.html","label":"lists.opensuse.org/opensuse-security-announce/2019-03/msg00046.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ABTDKZK2G5XP6JCO3HXMPOA2NRTIYDZ/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us","label":"support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us","hostname":"support.hpe.com","tags":["X Refsource CONFIRM"]},{"url":"https://usn.ubuntu.com/4349-1/","label":"usn.ubuntu.com/4349-1/","hostname":"usn.ubuntu.com","tags":["Vendor Advisory","X Refsource UBUNTU"]},{"url":"https://ubuntu.com/security/CVE-2018-12178","label":"ubuntu.com/security/CVE-2018-12178","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://lists.01.org/pipermail/edk2-devel/2019-February/037251.html","label":"lists.01.org/pipermail/edk2-devel/2019-February/037251.html","hostname":"lists.01.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-4349-1","label":"ubuntu.com/security/notices/USN-4349-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-12178","label":"www.cve.org/CVERecord?id=CVE-2018-12178","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-12178","label":"security-tracker.debian.org/tracker/CVE-2018-12178","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2019:1083-1","OPENSUSE-SU-2024:11134-1","SUSE-SU-2019:0579-1","SUSE-SU-2019:0580-1","SUSE-SU-2019:0581-1","USN-4349-1"],"duplicates":[],"related":["OPENSUSE-SU-2019:1083-1","OPENSUSE-SU-2024:11134-1","SUSE-SU-2019:0579-1","SUSE-SU-2019:0580-1","SUSE-SU-2019:0581-1","USN-4349-1"]},"timeline":[{"kind":"published","date":"2019-03-27T19:19:31.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T08:30:59.170Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T03:47:02.822Z","stale":false,"partial":false}}