Yubico pam-u2f: Partial Authentication Bypass — GLSA 202501-04

A vulnerability has been discovered in Yubico pam-u2f, which can lead to a partial authentication bypass.

Package	sys-auth/pam_u2f on all architectures
Affected versions	< 1.3.2
Unaffected versions	>= 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"

Release date
January 23, 2025

Latest revision
January 23, 2025: 1

Severity
high

Exploitable
local

Bugzilla entries