CVEs-PoC/2020/CVE-2020-36694.md

CVE-2020-36694

Description

An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.

POC

Reference

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12

Github

No PoCs found on GitHub currently.