Home / mailings [gentoo-announce] [ GLSA 201607-10 ] Varnish: Multiple vulnerabilities
Posted on 20 July 2016
Gentoo-announceThis is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--Nk2vdM8ncR98wtk36fJvxJNhO3b5Q0DG8
Content-Type: multipart/mixed; boundary="59UA9jUi68d6NahCGwsdaheNmJ72FvaOp"
From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <e1b48a62-80a7-36f9-62aa-ecdacedc4fa8@gentoo.org>
Subject: [ GLSA 201607-10 ] Varnish: Multiple vulnerabilities
--59UA9jUi68d6NahCGwsdaheNmJ72FvaOp
Content-Type: multipart/alternative;
boundary="------------475E06A3D9254725B0D3E93E"
This is a multi-part message in MIME format.
--------------475E06A3D9254725B0D3E93E
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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
--------------475E06A3D9254725B0D3E93E
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf=-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>
<meta http-equiv="content-type" content="text/html; charset=u=tf-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-freet=ext" 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==2E0.7
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-20=15-8852</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/g=lsa/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/lic=enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre>
</body>
</html>
--------------475E06A3D9254725B0D3E93E--
--59UA9jUi68d6NahCGwsdaheNmJ72FvaOp--
--Nk2vdM8ncR98wtk36fJvxJNhO3b5Q0DG8
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
