{"schemaVersion":3,"id":"RHSA-2021:0184","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Red Hat Security Advisory: kernel security and bug fix update","dates":{"published":"2024-09-13T18:16:40.000Z","modified":"2026-08-26T10:01:33.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.7,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","computed":true,"selection":"version-preference"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":6.7,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":2.1,"impact":9.8,"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":"kernel","name":"kernel","label":"kernel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-core","name":"kernel-core","label":"kernel-core","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-core","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug","name":"kernel-debug","label":"kernel-debug","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug-core","name":"kernel-debug-core","label":"kernel-debug-core","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug-core","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug-debuginfo","name":"kernel-debug-debuginfo","label":"kernel-debug-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug-debuginfo","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug-devel","name":"kernel-debug-devel","label":"kernel-debug-devel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug-devel","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug-modules","name":"kernel-debug-modules","label":"kernel-debug-modules","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug-modules","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debug-modules-extra","name":"kernel-debug-modules-extra","label":"kernel-debug-modules-extra","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debug-modules-extra","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debuginfo","name":"kernel-debuginfo","label":"kernel-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debuginfo","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debuginfo-common-aarch64","name":"kernel-debuginfo-common-aarch64","label":"kernel-debuginfo-common-aarch64","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debuginfo-common-aarch64","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debuginfo-common-ppc64le","name":"kernel-debuginfo-common-ppc64le","label":"kernel-debuginfo-common-ppc64le","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64le","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debuginfo-common-s390x","name":"kernel-debuginfo-common-s390x","label":"kernel-debuginfo-common-s390x","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debuginfo-common-s390x","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-debuginfo-common-x86_64","name":"kernel-debuginfo-common-x86_64","label":"kernel-debuginfo-common-x86_64","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-devel","name":"kernel-devel","label":"kernel-devel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-devel","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-modules","name":"kernel-modules","label":"kernel-modules","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-modules","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-modules-extra","name":"kernel-modules-extra","label":"kernel-modules-extra","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-modules-extra","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump","name":"kernel-zfcpdump","label":"kernel-zfcpdump","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump-core","name":"kernel-zfcpdump-core","label":"kernel-zfcpdump-core","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump-core","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump-debuginfo","name":"kernel-zfcpdump-debuginfo","label":"kernel-zfcpdump-debuginfo","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump-debuginfo","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump-devel","name":"kernel-zfcpdump-devel","label":"kernel-zfcpdump-devel","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump-devel","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump-modules","name":"kernel-zfcpdump-modules","label":"kernel-zfcpdump-modules","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump-modules","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null},{"vendor":"redhat","product":"kernel-zfcpdump-modules-extra","name":"kernel-zfcpdump-modules-extra","label":"kernel-zfcpdump-modules-extra","ecosystem":"Red Hat","cpePart":null,"purl":"pkg:rpm/redhat/kernel-zfcpdump-modules-extra","purlType":"rpm","versions":[{"text":"< 0:4.18.0-147.38.1.el8_1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0:4.18.0-147.38.1.el8_1","eol":null,"hubHref":null}],"affectedCount":22,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2021:0184","label":"access.redhat.com/errata/RHSA-2021:0184","hostname":"access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","label":"access.redhat.com/security/updates/classification/","hostname":"access.redhat.com","tags":["ARTICLE"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1865751","label":"bugzilla.redhat.com/show_bug.cgi?id=1865751","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1877571","label":"bugzilla.redhat.com/show_bug.cgi?id=1877571","hostname":"bugzilla.redhat.com","tags":["REPORT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0184.json","label":"security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0184.json","hostname":"security.access.redhat.com","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-16166","label":"access.redhat.com/security/cve/CVE-2020-16166","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-16166","label":"www.cve.org/CVERecord?id=CVE-2020-16166","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16166","label":"nvd.nist.gov/vuln/detail/CVE-2020-16166","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-25211","label":"access.redhat.com/security/cve/CVE-2020-25211","hostname":"access.redhat.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-25211","label":"www.cve.org/CVERecord?id=CVE-2020-25211","hostname":"www.cve.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25211","label":"nvd.nist.gov/vuln/detail/CVE-2020-25211","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cc5ef91d2ff94d2bf2de3b3585423e8a1051cb6","label":"git.kernel.org/pub/…","hostname":"git.kernel.org","tags":["ARTICLE"]}],"lineage":{"upstream":["CVE-2020-16166","CVE-2020-25211"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2024-09-13T18:16:40.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-26T10:01:33.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":27,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T05:27:17.459Z","stale":false,"partial":false}}