A libyang security update has been released for Gentoo Linux.

GLSA 202107-54 : libyang: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 202107-54
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  https://security.gentoo.org/
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Severity: Low
Title: libyang: Multiple vulnerabilities
Date: July 24, 2021
Bugs: #791373
ID: 202107-54

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Synopsis
========

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

Background
==========

YANG data modeling language library.

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

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Package / Vulnerable / Unaffected
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1 net-libs/libyang < 1.0.236 >= 1.0.236

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

Multiple vulnerabilities have been discovered in libyang. 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 libyang users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/libyang-1.0.236"

References
==========

[ 1 ] CVE-2021-28902
  https://nvd.nist.gov/vuln/detail/CVE-2021-28902
[ 2 ] CVE-2021-28903
  https://nvd.nist.gov/vuln/detail/CVE-2021-28903
[ 3 ] CVE-2021-28904
  https://nvd.nist.gov/vuln/detail/CVE-2021-28904
[ 4 ] CVE-2021-28905
  https://nvd.nist.gov/vuln/detail/CVE-2021-28905
[ 5 ] CVE-2021-28906
  https://nvd.nist.gov/vuln/detail/CVE-2021-28906

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

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

  https://security.gentoo.org/glsa/202107-54

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 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