cve/2021/CVE-2021-4028.md

CVE-2021-4028

Description

A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.

POC

Reference

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/EGI-Federation/SVG-advisories