cve/2020/CVE-2020-8428.md

CVE-2020-8428

Description

fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.

POC

Reference

• http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/nomi-sec/PoC-in-GitHub