A pam security update has been released for Fedora 32.

SECURITY: Fedora 32 Update: pam-1.3.1-29.fc32

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Fedora Update Notification
FEDORA-2020-bd83344365
2020-12-11 01:09:32.943615
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Name : pam
Product : Fedora 32
Version : 1.3.1
Release : 29.fc32
URL :   http://www.linux-pam.org/
Summary : An extensible library which provides authentication for applications
Description :
PAM (Pluggable Authentication Modules) is a system security tool that
allows system administrators to set authentication policy without
having to recompile programs that handle authentication.

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Update Information:

fix CVE-2020-27780: authentication bypass when the user doesn't exist
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ChangeLog:

* Fri Nov 27 2020 Iker Pedrosa - 1.3.1-29
- fix CVE-2020-27780: authentication bypass when the user doesn't exist
and root password is blank (#1901173)
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References:

[ 1 ] Bug #1901094 - CVE-2020-27780 pam: authentication bypass when the user doesn't exist and root password is blank
  https://bugzilla.redhat.com/show_bug.cgi?id=1901094
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-bd83344365' 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