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Gentoo Linux Security Advisory                           GLSA 202004-15
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                                           https://security.gentoo.org/
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 Severity: High
    Title: libu2f-host: Multiple vulnerabilities
     Date: April 30, 2020
     Bugs: #678580, #679724
       ID: 202004-15

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Synopsis
=======
Multiple vulnerabilities have been found in libu2f-host, the worst of
which could result in the execution of code.

Background
=========
Yubico Universal 2nd Factor (U2F) Host C Library.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-crypt/libu2f-host        < 1.1.10                  >= 1.1.10

Description
==========
Multiple vulnerabilities have been discovered in libu2f-host. Please
review the CVE identifiers referenced below for details.

Impact
=====
A remote attacker could entice a user to plug-in a malicious USB
device, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All libu2f-host users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-crypt/libu2f-host-1.1.10"

References
=========
[ 1 ] CVE-2018-20340
      https://nvd.nist.gov/vuln/detail/CVE-2018-20340
[ 2 ] CVE-2019-9578
      https://nvd.nist.gov/vuln/detail/CVE-2019-9578

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

 https://security.gentoo.org/glsa/202004-15

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 2020 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/