- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202103-03
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: OpenSSL: Multiple vulnerabilities
      Date: March 31, 2021
      Bugs: #769785, #777681
        ID: 202103-03

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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
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/