Detections
Analytics
CVE-2021-43057
high
Description
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.
References
https://security.netapp.com/advisory/ntap-20211125-0001/
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8
https://bugs.chromium.org/p/project-zero/issues/detail?id=2229