{"id":"USN-6533-1","summary":"linux-oem-6.1 vulnerabilities","details":"Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV)\nimplementation for AMD processors in the Linux kernel contained a race\ncondition when accessing MMIO registers. A local attacker in a SEV guest VM\ncould possibly use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-46813)\n\nIt was discovered that the io_uring subsystem in the Linux kernel contained\na race condition, leading to a null pointer dereference vulnerability. A\nlocal attacker could use this to cause a denial of service (system crash).\n(CVE-2023-46862)\n\n","modified":"2026-03-19T08:53:50.697506Z","published":"2023-12-05T21:59:34Z","related":["UBUNTU-CVE-2023-46813","UBUNTU-CVE-2023-46862"],"upstream":["CVE-2023-46813","CVE-2023-46862","UBUNTU-CVE-2023-46813","UBUNTU-CVE-2023-46862"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6533-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-46813"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-46862"}],"affected":[{"package":{"name":"linux-oem-6.1","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-oem-6.1@6.1.0-1027.27?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.0-1027.27"}]}],"versions":["6.1.0-1004.4","6.1.0-1006.6","6.1.0-1007.7","6.1.0-1008.8","6.1.0-1009.9","6.1.0-1010.10","6.1.0-1012.12","6.1.0-1013.13","6.1.0-1014.14","6.1.0-1015.15","6.1.0-1016.16","6.1.0-1017.17","6.1.0-1019.19","6.1.0-1020.20","6.1.0-1021.21","6.1.0-1022.22","6.1.0-1023.23","6.1.0-1024.24","6.1.0-1025.25","6.1.0-1026.26"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"6.1.0-1027.27","binary_name":"linux-buildinfo-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-headers-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-image-unsigned-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-modules-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-modules-ipu6-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-modules-ivsc-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-modules-iwlwifi-6.1.0-1027-oem"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-oem-6.1-headers-6.1.0-1027"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-oem-6.1-tools-6.1.0-1027"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-oem-6.1-tools-host"},{"binary_version":"6.1.0-1027.27","binary_name":"linux-tools-6.1.0-1027-oem"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-46813"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2023-46862"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6533-1.json"}}],"schema_version":"1.7.5"}