{"id":"USN-6485-1","summary":"intel-microcode vulnerability","details":"Benoit Morgan, Paul Grosen, Thais Moreira Hamasaki, Ke Sun, Alyssa Milburn,\nHisham Shafi, Nir Shlomovich, Tavis Ormandy, Daniel Moghimi, Josh Eads, Salman\nQazi, Alexandra Sandulescu, Andy Nguyen, Eduardo Vela, Doug Kwan, and Kostik\nShtoyk discovered that some Intel(R) Processors did not properly handle certain\nsequences of processor instructions. A local attacker could possibly use this to\ncause a core hang (resulting in a denial of service), gain access to sensitive\ninformation or possibly escalate their privileges.\n","modified":"2026-02-10T04:43:25Z","published":"2023-11-17T00:12:04Z","related":["UBUNTU-CVE-2023-23583"],"upstream":["CVE-2023-23583","UBUNTU-CVE-2023-23583"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6485-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-23583"}],"affected":[{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20231114.0ubuntu0.16.04.1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20231114.0ubuntu0.16.04.1+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","3.20220510.0ubuntu0.16.04.1+esm1","3.20230214.0ubuntu0.16.04.1+esm1","3.20230808.0ubuntu0.16.04.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20231114.0ubuntu0.16.04.1+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6485-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2023-23583"}]}}},{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20231114.0ubuntu0.18.04.1+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20231114.0ubuntu0.18.04.1+esm1"}]}],"versions":["3.20170707.1","3.20171117.1","3.20180108.1","3.20180108.1+really20171117.1","3.20180312.0~ubuntu18.04.1","3.20180425.1~ubuntu0.18.04.1","3.20180425.1~ubuntu0.18.04.2","3.20180807a.0ubuntu0.18.04.1","3.20190514.0ubuntu0.18.04.2","3.20190514.0ubuntu0.18.04.3","3.20190618.0ubuntu0.18.04.1","3.20191112-0ubuntu0.18.04.2","3.20191115.1ubuntu0.18.04.1","3.20191115.1ubuntu0.18.04.2","3.20200609.0ubuntu0.18.04.0","3.20200609.0ubuntu0.18.04.1","3.20201110.0ubuntu0.18.04.1","3.20201110.0ubuntu0.18.04.2","3.20210216.0ubuntu0.18.04.1","3.20210608.0ubuntu0.18.04.1","3.20220510.0ubuntu0.18.04.1","3.20220809.0ubuntu0.18.04.1","3.20230214.0ubuntu0.18.04.1","3.20230808.0ubuntu0.18.04.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20231114.0ubuntu0.18.04.1+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6485-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2023-23583"}]}}},{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20231114.0ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20231114.0ubuntu0.20.04.1"}]}],"versions":["3.20190918.1ubuntu1","3.20191115.1ubuntu1","3.20191115.1ubuntu2","3.20191115.1ubuntu3","3.20200609.0ubuntu0.20.04.0","3.20200609.0ubuntu0.20.04.1","3.20200609.0ubuntu0.20.04.2","3.20201110.0ubuntu0.20.04.1","3.20201110.0ubuntu0.20.04.2","3.20210216.0ubuntu0.20.04.1","3.20210608.0ubuntu0.20.04.1","3.20220510.0ubuntu0.20.04.1","3.20220809.0ubuntu0.20.04.1","3.20230214.0ubuntu0.20.04.1","3.20230808.0ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20231114.0ubuntu0.20.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6485-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2023-23583"}]}}},{"package":{"name":"intel-microcode","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/intel-microcode@3.20231114.0ubuntu0.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20231114.0ubuntu0.22.04.1"}]}],"versions":["3.20210608.2ubuntu1","3.20220510.0ubuntu0.22.04.1","3.20220809.0ubuntu0.22.04.1","3.20230214.0ubuntu0.22.04.1","3.20230808.0ubuntu0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"intel-microcode","binary_version":"3.20231114.0ubuntu0.22.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6485-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2023-23583"}]}}}],"schema_version":"1.7.3"}