{"id":"USN-5206-1","summary":"linux-oem-5.14 vulnerability","details":"Nadav Amit discovered that the hugetlb implementation in the Linux kernel\ndid not perform TLB flushes under certain conditions. A local attacker\ncould use this to leak or alter data from other processes that use huge\npages.\n","modified":"2026-02-10T04:42:24Z","published":"2022-01-05T17:31:03Z","related":["UBUNTU-CVE-2021-4002"],"upstream":["CVE-2021-4002","UBUNTU-CVE-2021-4002"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5206-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4002"}],"affected":[{"package":{"name":"linux-oem-5.14","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-oem-5.14@5.14.0-1013.13?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.0-1013.13"}]}],"versions":["5.14.0-1004.4","5.14.0-1005.5","5.14.0-1007.7","5.14.0-1008.8","5.14.0-1010.10","5.14.0-1011.11"],"ecosystem_specific":{"binaries":[{"binary_version":"5.14.0-1013.13","binary_name":"linux-buildinfo-5.14.0-1013-oem"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-headers-5.14.0-1013-oem"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-image-unsigned-5.14.0-1013-oem"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-modules-5.14.0-1013-oem"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-oem-5.14-headers-5.14.0-1013"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-oem-5.14-tools-5.14.0-1013"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-oem-5.14-tools-host"},{"binary_version":"5.14.0-1013.13","binary_name":"linux-tools-5.14.0-1013-oem"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-4002","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5206-1.json"}}],"schema_version":"1.7.3"}