Sudo 1.8.25p – Buffer Overflow (CVE-2019-18634)

If pwfeedback is enabled in sudoers, the stack overflow may allow unprivileged users to escalate to the root account.

• Sudo 1.8.25p – ‘pwfeedback’ Buffer Overflow (PoC) (ExploitDB)

Check if server is vulnerable

grep pwfeedback /etc/sudoers