{"id":"USN-7077-1","summary":"amd64-microcode vulnerability","details":"Enrique Nissim and Krzysztof Okupski discovered that some AMD processors\ndid not properly restrict access to the System Management Mode (SMM)\nconfiguration when the SMM Lock was enabled. A privileged local attacker\ncould possibly use this issue to further escalate their privileges and\nexecute arbitrary code within the processor's firmware layer.\n","modified":"2026-02-10T04:45:29Z","published":"2024-10-21T00:06:41Z","related":["UBUNTU-CVE-2023-31315"],"upstream":["CVE-2023-31315","UBUNTU-CVE-2023-31315"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7077-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-31315"}],"affected":[{"package":{"name":"amd64-microcode","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/amd64-microcode@3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3"}]}],"versions":["2.20141028.1","2.20160316.1","3.20180524.1~ubuntu0.16.04.1","3.20180524.1~ubuntu0.16.04.2","3.20191021.1ubuntu0.16.04.1","3.20191021.1+really3.20180524.1~ubuntu0.16.04.2","3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm1","3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3","binary_name":"amd64-microcode"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2023-31315","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7077-1.json"}},{"package":{"name":"amd64-microcode","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/amd64-microcode@3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3"}]}],"versions":["3.20160316.3","3.20171205.1","3.20180524.1~ubuntu0.18.04.1","3.20180524.1~ubuntu0.18.04.2","3.20191021.1ubuntu0.18.04.2","3.20191021.1+really3.20181128.1~ubuntu0.18.04.1","3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm1","3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3","binary_name":"amd64-microcode"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2023-31315","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7077-1.json"}},{"package":{"name":"amd64-microcode","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/amd64-microcode@3.20191218.1ubuntu1.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20191218.1ubuntu1.3"}]}],"versions":["3.20181128.1ubuntu2","3.20191021.1ubuntu1","3.20191218.1ubuntu1","3.20191218.1ubuntu1.1","3.20191218.1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.20191218.1ubuntu1.3","binary_name":"amd64-microcode"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2023-31315","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7077-1.json"}},{"package":{"name":"amd64-microcode","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/amd64-microcode@3.20191218.1ubuntu2.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20191218.1ubuntu2.3"}]}],"versions":["3.20191218.1ubuntu2","3.20191218.1ubuntu2.1","3.20191218.1ubuntu2.2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.20191218.1ubuntu2.3","binary_name":"amd64-microcode"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-31315","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7077-1.json"}},{"package":{"name":"amd64-microcode","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/amd64-microcode@3.20231019.1ubuntu2.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20231019.1ubuntu2.1"}]}],"versions":["3.20230808.1.1ubuntu1","3.20231019.1ubuntu1","3.20231019.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.20231019.1ubuntu2.1","binary_name":"amd64-microcode"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"id":"CVE-2023-31315","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7077-1.json"}}],"schema_version":"1.7.3"}