<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202501-04">
    <title>Yubico pam-u2f: Partial Authentication Bypass</title>
    <synopsis>A vulnerability has been discovered in Yubico pam-u2f, which can lead to a partial authentication bypass.</synopsis>
    <product type="ebuild">pam_u2f</product>
    <announced>2025-01-23</announced>
    <revised count="1">2025-01-23</revised>
    <bug>948201</bug>
    <access>local</access>
    <affected>
        <package name="sys-auth/pam_u2f" auto="yes" arch="*">
            <unaffected range="ge">1.3.2</unaffected>
            <vulnerable range="lt">1.3.2</vulnerable>
        </package>
    </affected>
    <background>
        <p>Yubico pam-u2f is a PAM module for FIDO2 and U2F keys.</p>
    </background>
    <description>
        <p>Multiple vulnerabilities have been discovered in Yubico pam-u2f. Please review the CVE identifiers referenced below for details.</p>
    </description>
    <impact type="high">
        <p>Depending on specific settings and usage scenarios the result of the pam-u2f module may be altered or ignored.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>All Yubico pam-u2f users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">=sys-auth/pam_u2f-1.3.2"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2025-23013">CVE-2025-23013</uri>
        <uri link="https://www.yubico.com/support/security-advisories/YSA-2025-01">YSA-2025-01</uri>
    </references>
    <metadata tag="requester" timestamp="2025-01-23T06:15:02.537459Z">graaff</metadata>
    <metadata tag="submitter" timestamp="2025-01-23T06:15:02.541001Z">graaff</metadata>
</glsa>