{"id":"CVE-2021-43057","details":"An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.","modified":"2026-03-15T22:42:08.520983Z","published":"2021-10-28T04:15:08.270Z","references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20211125-0001/"},{"type":"FIX","url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7"},{"type":"FIX","url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=2229"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.13"},{"fixed":"5.14.8"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43057.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}