{"schemaVersion":3,"id":"CVE-2018-8022","aliases":["UBUNTU-CVE-2018-8022","DEBIAN-CVE-2018-8022"],"status":"published","duplicateOf":null,"title":null,"description":"A carefully crafted invalid TLS handshake can cause Apache Traffic Server (ATS) to segfault. This affects version 6.2.2. To resolve this issue users running 6.2.2 should upgrade to 6.2.3 or later versions.","dates":{"published":"2018-08-29T13:00:00.000Z","modified":"2024-09-16T21:57:30.534Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","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:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Debian","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":10,"impact":6,"computed":true}]},"epss":{"probability":0.07496,"percentile":0.94422,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.07496},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0655,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.07496,"percentile":0.94422}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0655,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.07496,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.07496,"percentile":0.94422}]},"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-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"apache software foundation","product":"apache traffic server","name":"Apache Traffic Server","label":"apache traffic server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"6.2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.2.2","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_traffic_server"},{"vendor":"apache","product":"traffic_server","name":"traffic server","label":"traffic_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 6.0.0, ≤ 6.2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 6.0.0, ≤ 6.2.2","eol":null,"hubHref":"/vendor/apache/traffic_server"},{"vendor":"debian","product":"trafficserver","name":"trafficserver","label":"trafficserver","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/trafficserver","purlType":"deb","versions":[{"text":"< 7.0.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.0.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"trafficserver","name":"trafficserver","label":"trafficserver","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/trafficserver","purlType":"deb","versions":[{"text":"< 7.1.2+ds-3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.1.2+ds-3","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://lists.apache.org/thread.html/ce404d2fe16cc59085ece5a6236ccd1549def471a2a9508198d966b1%40%3Cusers.trafficserver.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["Mailing List","X Refsource MLIST"]},{"url":"http://www.securityfocus.com/bid/105183","label":"www.securityfocus.com/bid/105183","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://github.com/apache/trafficserver/pull/2147","label":"github.com/apache/trafficserver/pull/2147","hostname":"github.com","tags":["X Refsource CONFIRM","Patch","Third Party Advisory","REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-8022","label":"ubuntu.com/security/CVE-2018-8022","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"http://www.openwall.com/lists/oss-security/2018/08/29/1","label":"www.openwall.com/lists/oss-security/2018/08/29/1","hostname":"www.openwall.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-8022","label":"www.cve.org/CVERecord?id=CVE-2018-8022","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-8022","label":"security-tracker.debian.org/tracker/CVE-2018-8022","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-08-29T13:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T21:57:30.534Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T00:49:43.219Z","stale":false,"partial":false}}