A tale about exploiting KernelCTF Mitigation, Debian, and Ubuntu instances with a double-free in nf_tables in the Linux kernel, using novel techniques like Dirty Pagedirectory. All without even having to recompile the exploit for different kernel targets once.
An issue has been discovered in the Linux kernel that can be abused by
unprivileged local users to escalate privileges.
The issue is about Netfilter nf_tables accepting some invalid updates
to its configuration.
