– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201607-10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Severity: Normal
Title: Varnish: Multiple vulnerabilities
Date: July 20, 2016
Bugs: #542886
ID: 201607-10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Synopsis
========
Improper input validation in Varnish allows remote attackers to conduct
HTTP smuggling attacks, and possibly trigger a buffer overflow.
Background
==========
Varnish is a web application accelerator.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 www-servers/varnish < 3.0.7 >= 3.0.7
Description
===========
Varnish fails to properly validate input from HTTP headers, and does
not deny requests with multiple Content-Length headers.
Impact
======
Remote attackers could conduct an HTTP response splitting attack, which
may further enable them to conduct Cross-Site Scripting (XSS), Cache
Poisoning, Defacement, and Page Hijacking.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Varnish users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=www-servers/varnish-3.0.7”
References
==========
[ 1 ] CVE-2015-8852
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8852
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201607-10
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 2016 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
<html>
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</head>
<body bgcolor=”#FFFFFF” text=”#000000″>
<p>
<meta http-equiv=”content-type” content=”text/html; charset=utf-8″>
</p>
<pre style=”color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; white-space: pre-wrap;”>- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201607-10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
<a class=”moz-txt-link-freetext” href=”https://security.gentoo.org/”>https://security.gentoo.org/</a>
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Severity: Normal
Title: Varnish: Multiple vulnerabilities
Date: July 20, 2016
Bugs: #542886
ID: 201607-10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Synopsis
========
Improper input validation in Varnish allows remote attackers to conduct
HTTP smuggling attacks, and possibly trigger a buffer overflow.
Background
==========
Varnish is a web application accelerator.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 www-servers/varnish < 3.0.7 >= 3.0.7
Description
===========
Varnish fails to properly validate input from HTTP headers, and does
not deny requests with multiple Content-Length headers.
Impact
======
Remote attackers could conduct an HTTP response splitting attack, which
may further enable them to conduct Cross-Site Scripting (XSS), Cache
Poisoning, Defacement, and Page Hijacking.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Varnish users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=www-servers/varnish-3.0.7”
References
==========
[ 1 ] CVE-2015-8852
<a class=”moz-txt-link-freetext” href=”http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8852″>http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8852</a>
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
<a class=”moz-txt-link-freetext” href=”https://security.gentoo.org/glsa/201607-10″>https://security.gentoo.org/glsa/201607-10</a>
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
<a class=”moz-txt-link-abbreviated” href=”mailto:security@gentoo.org”>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=”moz-txt-link-freetext” href=”https://bugs.gentoo.org”>https://bugs.gentoo.org</a>.
License
=======
Copyright 2016 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.
<a class=”moz-txt-link-freetext” href=”http://creativecommons.org/licenses/by-sa/2.5″>http://creativecommons.org/licenses/by-sa/2.5</a></pre>
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