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Gentoo Linux Security Advisory                           GLSA 202105-22
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                                            https://security.gentoo.org/
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  Severity: Low
     Title: Samba: Multiple vulnerabilities
      Date: May 26, 2021
      Bugs: #778026, #786825
        ID: 202105-22

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Synopsis
========

Multiple vulnerabilities have been found in Samba, the worst of which
could result in a Denial of Service condition.

Background
==========

Samba is a suite of SMB and CIFS client/server programs.

Affected packages
=================

     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   1  net-fs/samba                 < 4.13.8                  >= 4.13.8

Description
===========

Multiple vulnerabilities have been discovered in Samba. Please review
the CVE identifiers referenced below for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Samba users should upgrade to the latest version:

   # emerge --sync
   # emerge --ask --oneshot --verbose ">=net-fs/samba-4.13.8"

References
==========

[ 1 ] CVE-2020-27840
       https://nvd.nist.gov/vuln/detail/CVE-2020-27840
[ 2 ] CVE-2021-20254
       https://nvd.nist.gov/vuln/detail/CVE-2021-20254
[ 3 ] CVE-2021-20277
       https://nvd.nist.gov/vuln/detail/CVE-2021-20277

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202105-22

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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2021 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.

https://creativecommons.org/licenses/by-sa/2.5