{"schemaVersion":3,"id":"RHSA-2020:2663","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: ntp security update","dates":{"published":"2024-09-16T04:24:04.000Z","modified":"2026-06-26T12:22:14.910Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.4,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":7.4,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":5.6,"impact":8.7,"computed":true}]},"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":"redhat","product":"ntp","name":"ntp","label":"ntp","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/ntp","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"ntp-debuginfo","name":"ntp-debuginfo","label":"ntp-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/ntp-debuginfo","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"ntp-doc","name":"ntp-doc","label":"ntp-doc","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/ntp-doc","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"ntp-perl","name":"ntp-perl","label":"ntp-perl","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/ntp-perl","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"ntpdate","name":"ntpdate","label":"ntpdate","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/ntpdate","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null},{"vendor":"redhat","product":"sntp","name":"sntp","label":"sntp","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/sntp","purlType":"rpm","versions":[{"text":"< 0:4.2.6p5-29.el7_8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.2.6p5-29.el7_8.2","eol":null,"hubHref":null}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2020:2663","label":"access.redhat.com/errata/RHSA-2020:2663","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1716665","label":"bugzilla.redhat.com/show_bug.cgi?id=1716665","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1811627","label":"bugzilla.redhat.com/show_bug.cgi?id=1811627","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2663.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2663.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-11868","label":"access.redhat.com/security/cve/CVE-2020-11868","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-11868","label":"www.cve.org/CVERecord?id=CVE-2020-11868","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11868","label":"nvd.nist.gov/vuln/detail/CVE-2020-11868","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3592","label":"support.ntp.org/bin/view/Main/NtpBug3592","hostname":"support.ntp.org","tags":["ARTICLE"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-13817","label":"access.redhat.com/security/cve/CVE-2020-13817","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-13817","label":"www.cve.org/CVERecord?id=CVE-2020-13817","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13817","label":"nvd.nist.gov/vuln/detail/CVE-2020-13817","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3596","label":"support.ntp.org/bin/view/Main/NtpBug3596","hostname":"support.ntp.org","tags":["ARTICLE"]}],"lineage":{"upstream":["CVE-2020-11868","CVE-2020-13817"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2024-09-16T04:24:04.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-26T12:22:14.910Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T22:48:27.360Z","stale":false,"partial":false}}