This security update resolves a publically reported vulnerability in TCP/IP that occurs during input/output control (IOCTL) processing. This vulnerability could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. An attacker who successfully exploited this vulnerability could run arbitrary code in the context of another process. If this process runs with administrator privileges, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
Administrators of NGINX web servers running PHP-FPM are advised to patch a vulnerability (CVE-2019-11043) that can let threat actors execute remote code on vulnerable, NGINX-enabled web servers. Here’s what you need to know.