Updating sudo on CentOS 6

CentOS 6 is now EOL (End of life).

Unfortunately there's a nasty little bug in the sudo application that can cause non-privileged users to gain root access.

To patch it, download the RPM directly from the sudo site and upgrade:

rpm -Uvh https://github.com/sudo-project/sudo/releases/download/SUDO_1_9_5p2/sudo-1.9.5-3.el6.x86_64.rpm

If you run sudo -V you should now see:

Sudoers I/O plugin version 1.9.5p2

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