The vulnerability of the $HOME/.config/Yubico/u2f_keys authentication file is related to the PAM module Yubico’s pam-u2f, which allows a perpetrator to disclose protected information.

The vulnerability of the $HOME/.config/Yubico/u2fKeys authentication file is related to the lack of protection for service data in the PAM module Yubico’s pam-u2f. Exploiting this vulnerability allows a malicious actor to disclose the protected information...