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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-10-28T03:36:24

Updated: 2024-08-04T03:47:13.197Z

Reserved: 2021-10-28T00:00:00

Link: CVE-2021-43057

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-10-28T04:15:08.270

Modified: 2023-03-01T20:15:57.537

Link: CVE-2021-43057

cve-icon Redhat

Severity : Important

Publid Date: 2021-09-23T00:00:00Z

Links: CVE-2021-43057 - Bugzilla