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

Severity:high
Title:Yubico pam-u2f: Partial Authentication Bypass
Date:01/23/2025
Bugs: #948201
ID:202501-04

Synopsis

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

Background

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

Affected packages

Package Vulnerable Unaffected Architecture(s)
sys-auth/pam_u2f < 1.3.2 >= 1.3.2 All supported architectures

Description

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

Impact

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

Workaround

There is no known workaround at this time.

Resolution

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

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

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202501-04.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!