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Gentoo Linux Security Advisory                           GLSA 201706-18
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                                           https://security.gentoo.org/
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 Severity: High
    Title: mbed TLS: Multiple vulnerabilities
     Date: June 20, 2017
     Bugs: #562608, #571102, #618824
       ID: 201706-18

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Synopsis
========

Multiple vulnerabilities have been found in mbed TLS, the worst of
which could lead to the remote execution of arbitrary code.

Background
==========

mbed TLS (previously PolarSSL) is an "easy to understand, use,
integrate and expand" 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             < 2.4.2                    >= 2.4.2

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

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

Impact
======

A remote attacker 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-2.4.2"

References
==========

[ 1 ] CVE-2015-5291
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-5291
[ 2 ] CVE-2015-7575
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-7575
[ 3 ] CVE-2017-2784
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-2784

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

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

 https://security.gentoo.org/glsa/201706-18

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 2017 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.

http://creativecommons.org/licenses/by-sa/2.5



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