Yubico pam-u2f: Partial Authentication Bypass

Yubico pam-u2f: Partial Authentication Bypass A vulnerability has been discovered in Yubico pam-u2f, which can lead to a partial authentication bypass. pam_u2f 2025-01-23 2025-01-23 948201 local 1.3.2 1.3.2

Yubico pam-u2f is a PAM module for FIDO2 and U2F keys.

Multiple vulnerabilities have been discovered in Yubico pam-u2f. Please review the CVE identifiers referenced below for details.

Depending on specific settings and usage scenarios the result of the pam-u2f module may be altered or ignored.

There is no known workaround at this time.

All Yubico pam-u2f users should upgrade to the latest version:


          # emerge --sync
          # emerge --ask --oneshot --verbose ">=sys-auth/pam_u2f-1.3.2"

CVE-2025-23013 YSA-2025-01 graaff graaff