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Gentoo Linux Security Advisory GLSA 201903-10
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https://security.gentoo.org/
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Severity: Normal
Title: OpenSSL: Multiple vulnerabilities
Date: March 14, 2019
Bugs: #673056, #678564
ID: 201903-10

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Synopsis
========

Multiple Information Disclosure vulnerabilities in OpenSSL allow
attackers to obtain sensitive information.

Background
==========

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

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

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-libs/openssl < 1.0.2r >= 1.0.2r

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

Multiple vulnerabilities have been discovered in OpenSSL. Please review
the CVE identifiers referenced below for details.

Impact
======

A remote attacker to obtain sensitive information, caused by the
failure to immediately close the TCP connection after the hosts
encounter a zero-length record with valid padding.

A local attacker could run a malicious process next to legitimate
processes using the architecture’s parallel thread running capabilities
to leak encrypted data from the CPU’s internal processes.

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-1.0.2r”

References
==========

[ 1 ] CVE-2018-5407
https://nvd.nist.gov/vuln/detail/CVE-2018-5407
[ 2 ] CVE-2019-1559
https://nvd.nist.gov/vuln/detail/CVE-2019-1559

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

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

https://security.gentoo.org/glsa/201903-10

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 2019 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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