Vulnerability in the Linux Netfilter Kernel Subsystem
A vulnerability (CVE-2021-22555) has been discovered in Netfilter, a subsystem of the Linux kernel used for filtering and modifying network packets, allowing a local user to gain root privileges on the system, even within an isolated container. A working prototype of an exploit has been prepared for testing, bypassing KASLR, SMAP, and SMEP protection mechanisms. The researcher who identified the vulnerability received a $20,000 reward from Google for […]
