Sicherheit: Mangelnde Eingabeprüfung in Varnish

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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

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Gentoo Linux Security Advisory GLSA 201607-10
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https://security.gentoo.org/
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Severity: Normal
Title: Varnish: Multiple vulnerabilities
Date: July 20, 2016
Bugs: #542886
ID: 201607-10

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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

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Gentoo Linux Security Advisory GLSA 201607-10
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<a
class=3D"moz-txt-link-freet=
ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</=
a>
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Severity: Normal
Title: Varnish: Multiple vulnerabilities
Date: July 20, 2016
Bugs: #542886
ID: 201607-10

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Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

Improper input validation in Varnish allows remote attackers to conduct
HTTP smuggling attacks, and possibly trigger a buffer overflow.

Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Varnish is a web application accelerator.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/varnish < 3.0.7 >=3D
3=
=2E0.7=20

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Varnish fails to properly validate input from HTTP headers, and does
not deny requests with multiple Content-Length headers.

Impact
=3D=3D=3D=3D=3D=3D

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
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

There is no known workaround at this time.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All Varnish users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose
">=3Dwww-servers/varnish-3.0.7"

References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

[ 1 ] CVE-2015-8852
<a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2015-8852">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
15-8852</a>

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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

<a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g=
lsa/201607-10">https://security.gentoo.org/glsa/201607-10</a>

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

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=3D"moz-txt-link-abbreviated"
href=3D"mailto:security@gentoo.org"=
>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https=
://bugs.gentoo.org</a>.

License
=3D=3D=3D=3D=3D=3D=3D

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=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic=
enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre>
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