I'm sure that all Linux distributions fix it or have fixed it already. Just keep your system up to date with apt / dnf regularly. And in case you don't know it, Linux distributions to not raise the major version of a software when they fix it. If you want to know if it's fixed already, take a look at the version history in the package database of the Linux distribution you use. You can not see if it's fixed or not from the Nginx version.