{"schemaVersion":3,"id":"CVE-2018-1067","aliases":["UBUNTU-CVE-2018-1067","DEBIAN-CVE-2018-1067","GHSA-47mp-rq2x-wjf2"],"status":"published","duplicateOf":null,"title":null,"description":"In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulnerable to the injection of arbitrary HTTP headers, and also response splitting, due to insufficient sanitization and validation of user input before the input is used as part of an HTTP header value.","dates":{"published":"2018-05-21T17:00:00.000Z","modified":"2024-08-05T03:51:47.329Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.1,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":5.4,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":5.4,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5.8,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":7.2,"impact":4.5,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":5.4,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","exploitability":7.2,"impact":4.2,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":7.2,"impact":4.5,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":7.2,"impact":4.5,"computed":true}]},"epss":{"probability":0.0182,"percentile":0.78426,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.06400000000000017,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01756},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0182,"percentile":0.78426}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01756,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0182,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0182,"percentile":0.78426}]},"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-113","name":"Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')","description":"The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.","type":"weakness","status":"Incomplete","abstraction":"Variant","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/113.html"}],"affected":[{"vendor":"debian","product":"undertow","name":"undertow","label":"undertow","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/undertow","purlType":"deb","versions":[{"text":"< 1.4.25-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.4.25-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"undertow","name":"undertow","label":"undertow","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/undertow","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"org.jboss.eap","product":"wildfly-undertow","name":"org.jboss.eap:wildfly-undertow","label":"wildfly-undertow","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.jboss.eap/wildfly-undertow","purlType":"maven","versions":[{"text":"< 7.1.2.GA","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.1.2.GA","eol":null,"hubHref":null},{"vendor":"redhat","product":"jboss_enterprise_application_platform","name":"jboss enterprise application platform","label":"jboss_enterprise_application_platform","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"7.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.1","eol":null,"hubHref":"/vendor/redhat/jboss_enterprise_application_platform"},{"vendor":"redhat","product":"undertow","name":"undertow","label":"undertow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.4.25","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.0.0, < 2.0.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.4.25 | ≥ 2.0.0, < 2.0.5","eol":null,"hubHref":"/vendor/redhat/undertow"},{"vendor":"redhat","product":"virtualization_host","name":"virtualization host","label":"virtualization_host","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.0","eol":null,"hubHref":"/vendor/redhat/virtualization_host"},{"vendor":"[unknown]","product":"undertow","name":"undertow","label":"undertow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"undertow 7.1.2.CR1","noFixRecorded":false,"fixedIn":null},{"text":"undertow 7.1.2.GA","noFixRecorded":false,"fixedIn":null}],"versionsText":"undertow 7.1.2.CR1 | undertow 7.1.2.GA","eol":null,"hubHref":"/vendor/unknown/undertow"}],"affectedCount":7,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2018:1248","label":"access.redhat.com/errata/RHSA-2018:1248","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2018:1251","label":"access.redhat.com/errata/RHSA-2018:1251","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2643","label":"access.redhat.com/errata/RHSA-2018:2643","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1067","label":"bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1067","hostname":"bugzilla.redhat.com","tags":["X Refsource CONFIRM","Issue Tracking","Vendor Advisory","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2018:1247","label":"access.redhat.com/errata/RHSA-2018:1247","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2018:1249","label":"access.redhat.com/errata/RHSA-2018:1249","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2019:0877","label":"access.redhat.com/errata/RHSA-2019:0877","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","WEB"]},{"url":"https://ubuntu.com/security/CVE-2018-1067","label":"ubuntu.com/security/CVE-2018-1067","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://issues.jboss.org/browse/UNDERTOW-1302","label":"issues.jboss.org/browse/UNDERTOW-1302","hostname":"issues.jboss.org","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-1067","label":"www.cve.org/CVERecord?id=CVE-2018-1067","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-1067","label":"security-tracker.debian.org/tracker/CVE-2018-1067","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1067","label":"nvd.nist.gov/vuln/detail/CVE-2018-1067","hostname":"nvd.nist.gov","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["RHSA-2018:1247","RHSA-2018:1248","RHSA-2018:1249","RHSA-2018:2643"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-05-21T17:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T03:51:47.329Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":25,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T13:50:57.497Z","stale":false,"partial":false}}