A pam-u2f security update has been released for Fedora 35.

SECURITY: Fedora 35 Update: pam-u2f-1.2.0-2.fc35

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Fedora Update Notification
FEDORA-2021-a52d48b1c2
2021-12-13 17:11:40.075379
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Name : pam-u2f
Product : Fedora 35
Version : 1.2.0
Release : 2.fc35
URL :   https://github.com/Yubico/pam-u2f
Summary : Implements PAM authentication over U2F
Description :
The PAM U2F module provides an easy way to integrate the Yubikey (or
other U2F-compliant authenticators) into your existing user
authentication infrastructure.

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Update Information:

Security fix for CVE-2021-31924
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ChangeLog:

* Sun Dec 5 2021 Gary Buhrmaster - 1.2.0-2
- Update changelog to reflect security related issues/tickets
- Fixes CVE-2021-31924
- Fixes rhbz#2028244
- Fixes rhbz#2028245
* Mon Nov 8 2021 Gary Burhmaster - 1.2.0-1
- Update to 1.2.0 upstream release (#1993435)
- Support (optional) autoreconf invokation if needed for patches
- Migrate to pkgconfig for BR per packaging guidelines
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References:

[ 1 ] Bug #2028244 - CVE-2021-31924 pam-u2f: Logic issue may lead to local PIN bypass
  https://bugzilla.redhat.com/show_bug.cgi?id=2028244
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-a52d48b1c2' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys
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