CVEs-PoC/2020/CVE-2020-12114.md

CVE-2020-12114

Description

A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before 4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a denial of service (panic) by corrupting a mountpoint reference counter.

POC

Reference

• http://packetstormsecurity.com/files/159565/Kernel-Live-Patch-Security-Notice-LSN-0072-1.html
• http://www.openwall.com/lists/oss-security/2020/05/04/2
• https://usn.ubuntu.com/4388-1/
• https://www.oracle.com/security-alerts/cpuApr2021.html

Github

• https://github.com/ARPSyndicate/cvemon