{"id":"USN-5535-1","summary":"Intel Microcode vulnerabilities","details":"Joseph Nuzman discovered that some Intel processors did not properly\ninitialise shared resources. A local attacker could use this to obtain\nsensitive information. (CVE-2021-0145)\n\nMark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel\nprocessors did not prevent test and debug logic from being activated at\nruntime. A local attacker could use this to escalate\nprivileges. (CVE-2021-0146)\n\nIt was discovered that some Intel processors did not implement sufficient\ncontrol flow management. A local attacker could use this to cause a denial\nof service (system crash). (CVE-2021-0127)\n\nIt was discovered that some Intel processors did not completely perform\ncleanup actions on multi-core shared buffers. A local attacker could\npossibly use this to expose sensitive information. (CVE-2022-21123,\nCVE-2022-21127)\n\nIt was discovered that some Intel processors did not completely perform\ncleanup actions on microarchitectural fill buffers. A local attacker could\npossibly use this to expose sensitive information. (CVE-2022-21125)\n\nAlysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that\nsome Intel processors improperly optimised security-critical code. A local\nattacker could possibly use this to expose sensitive\ninformation. (CVE-2022-21151)\n\nIt was discovered that some Intel processors did not properly perform\ncleanup during specific special register write operations. A local attacker\ncould possibly use this to expose sensitive information. (CVE-2022-21166)\n\nIt was discovered that some Intel processors did not properly restrict\naccess in some situations. A local attacker could use this to obtain\nsensitive information. (CVE-2021-33117)\n\nBrandon Miller discovered that some Intel processors did not properly\nrestrict access in some situations. A local attacker could use this to\nobtain sensitive information or a remote attacker could use this to\ncause a denial of service (system crash). (CVE-2021-33120)\n","modified":"2026-02-10T04:42:42Z","published":"2022-07-28T05:31:23Z","related":["UBUNTU-CVE-2021-0127","UBUNTU-CVE-2021-0145","UBUNTU-CVE-2021-0146","UBUNTU-CVE-2021-33117","UBUNTU-CVE-2021-33120","UBUNTU-CVE-2022-21123","UBUNTU-CVE-2022-21125","UBUNTU-CVE-2022-21127","UBUNTU-CVE-2022-21151","UBUNTU-CVE-2022-21166"],"upstream":["CVE-2021-0127","CVE-2021-0145","CVE-2021-0146","CVE-2021-33117","CVE-2021-33120","CVE-2022-21123","CVE-2022-21125","CVE-2022-21127","CVE-2022-21151","CVE-2022-21166","UBUNTU-CVE-2021-0127","UBUNTU-CVE-2021-0145","UBUNTU-CVE-2021-0146","UBUNTU-CVE-2021-33117","UBUNTU-CVE-2021-33120","UBUNTU-CVE-2022-21123","UBUNTU-CVE-2022-21125","UBUNTU-CVE-2022-21127","UBUNTU-CVE-2022-21151","UBUNTU-CVE-2022-21166"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5535-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-0127"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-0145"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-0146"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33117"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33120"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-21123"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-21125"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-21127"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-21151"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-21166"}],"affected":[{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20220510.0ubuntu0.16.04.1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20220510.0ubuntu0.16.04.1+esm1"}]}],"versions":["3.20150121.1","3.20151106.1","3.20170707.1~ubuntu16.04.0","3.20180108.0~ubuntu16.04.2","3.20180108.0+really20170707ubuntu16.04.1","3.20180312.0~ubuntu16.04.1","3.20180425.1~ubuntu0.16.04.1","3.20180425.1~ubuntu0.16.04.2","3.20180807a.0ubuntu0.16.04.1","3.20190514.0ubuntu0.16.04.1","3.20190514.0ubuntu0.16.04.2","3.20190618.0ubuntu0.16.04.1","3.20191112-0ubuntu0.16.04.2","3.20191115.1ubuntu0.16.04.1","3.20191115.1ubuntu0.16.04.2","3.20200609.0ubuntu0.16.04.0","3.20200609.0ubuntu0.16.04.1","3.20201110.0ubuntu0.16.04.1","3.20201110.0ubuntu0.16.04.2","3.20210216.0ubuntu0.16.04.1","3.20210608.0ubuntu0.16.04.1+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"3.20220510.0ubuntu0.16.04.1+esm1","binary_name":"intel-microcode"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-0127"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-0145"},{"severity":[{"score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-0146"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-33117"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-33120"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-21123"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-21125"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-21127"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-21151"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-21166"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5535-1.json"}}],"schema_version":"1.7.3"}