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Gentoo Linux Security Advisory GLSA 202004-10
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https://security.gentoo.org/
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Severity: Normal
Title: OpenSSL: Multiple vulnerabilities
Date: April 23, 2020
Bugs: #702176, #717442
ID: 202004-10
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Synopsis
========
Multiple vulnerabilities were 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 < 1.1.1g >= 1.1.1g
Description
===========
Multiple vulnerabilities have been discovered in OpenSSL. Please review
the CVE identifiers referenced below for details.
Impact
======
A remote attacker could perform a malicious crafted TLS 1.3 handshake
against an application using OpenSSL, possibly resulting in a Denial of
Service condition.
In addition, it’s feasible that an attacker might attack DH512.
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-1.1.1g”
References
==========
[ 1 ] CVE-2019-1551
https://nvd.nist.gov/vuln/detail/CVE-2019-1551
[ 2 ] CVE-2020-1967
https://nvd.nist.gov/vuln/detail/CVE-2020-1967
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202004-10
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
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