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Gentoo Linux Security Advisory 201702-04

Gentoo Linux Security Advisory 201702-04
Posted Feb 10, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201702-4 - Multiple vulnerabilities have been found in GnuTLS, the worst of which may allow execution of arbitrary code. Versions less than 3.3.26 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2017-5334, CVE-2017-5335, CVE-2017-5336, CVE-2017-5337
MD5 | c9681ed405f2d4d8780d824b9f892bcb

Gentoo Linux Security Advisory 201702-04

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201702-04
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https://security.gentoo.org/
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Severity: Normal
Title: GnuTLS: Multiple vulnerabilities
Date: February 10, 2017
Bugs: #605238
ID: 201702-04

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Synopsis
========

Multiple vulnerabilities have been found in GnuTLS, the worst of which
may allow execution of arbitrary code.

Background
==========

GnuTLS is an Open Source implementation of the TLS and SSL protocols.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-libs/gnutls < 3.3.26 >= 3.3.26

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

Multiple heap and stack overflows and double free vulnerabilities have
been discovered in GnuTLS by the OSS-Fuzz project. Please review the
CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user or automated system to process a
specially crafted certificate using an application linked against
GnuTLS. This could possibly result in the execution of arbitrary code
with the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GnuTLS users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.3.26"

References
==========

[ 1 ] CVE-2017-5334
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5334
[ 2 ] CVE-2017-5335
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5335
[ 3 ] CVE-2017-5336
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5336
[ 4 ] CVE-2017-5337
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5337

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

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

https://security.gentoo.org/glsa/201702-04

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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