cvedb.io
CVE-2021-43057
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2021-10-28T04:15:08.270 · Last modified 2026-06-17T04:10:27.183

Summary

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.

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.