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Gentoo Linux Security Advisory                           GLSA 201804-19
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                                           https://security.gentoo.org/
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 Severity: High
    Title: mbed TLS: Multiple vulnerabilites
     Date: April 22, 2018
     Bugs: #647800
       ID: 201804-19

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Synopsis
========

Multiple vulnerabilities have been found in mbed TLS, the worst of
which could allow remote attackers to execute arbitrary code.

Background
==========

mbed TLS (previously PolarSSL) is an aeasy to understand, use,
integrate and expanda implementation of the TLS and SSL protocols and
the respective cryptographic algorithms and support code required.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-libs/mbedtls             < 2.7.2                    >= 2.7.2 

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

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

Impact
======

A remote attacker, through multiple vectors, could possibly execute
arbitrary code with the privileges of the process or cause a Denial of
Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mbed TLS users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-libs/mbedtls-2.7.2"

References
==========

[ 1 ] CVE-2017-18187
      https://nvd.nist.gov/vuln/detail/CVE-2017-18187
[ 2 ] CVE-2018-0487
      https://nvd.nist.gov/vuln/detail/CVE-2018-0487
[ 3 ] CVE-2018-0488
      https://nvd.nist.gov/vuln/detail/CVE-2018-0488

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

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

 https://security.gentoo.org/glsa/201804-19

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 2018 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