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Gentoo: GLSA-202103-03: OpenSSL: Multiple vulnerabilities

Date 31 Mar 2021
94
Posted By LinuxSecurity Advisories
Multiple vulnerabilities have been found in OpenSSL, the worst of which could allow remote attackers to cause a Denial of Service condition.
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Gentoo Linux Security Advisory                           GLSA 202103-03
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: OpenSSL: Multiple vulnerabilities
      Date: March 31, 2021
      Bugs: #769785, #777681
        ID: 202103-03

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Synopsis
========

Multiple vulnerabilities have been found in OpenSSL, the worst of which
could allow remote attackers to cause a Denial of Service condition.

Background
==========

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
(SSL v2/v3) and Transport Layer Security (TLS v1/v1.1/v1.2/v1.3) as
well as a general purpose cryptography library.

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

     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   1  dev-libs/openssl             < 1.1.1k                  >= 1.1.1k

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

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

   # emerge --sync
   # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.1.1k"

References
==========

[ 1 ] CVE-2021-23840
       https://nvd.nist.gov/vuln/detail/CVE-2021-23840
[ 2 ] CVE-2021-23841
       https://nvd.nist.gov/vuln/detail/CVE-2021-23841
[ 3 ] CVE-2021-3449
       https://nvd.nist.gov/vuln/detail/CVE-2021-3449
[ 4 ] CVE-2021-3450
       https://nvd.nist.gov/vuln/detail/CVE-2021-3450

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

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

  https://security.gentoo.org/glsa/202103-03

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
This email address is being protected from spambots. You need JavaScript enabled to view it. 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

Advisories

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