June 2006
Two Gentoo Linux Security Advisories: 1. GLSA 200606-04 - Tor: Several vulnerabilities 2. GLSA 200606-05 - Pound: HTTP request smuggling
ID: 00400
Ref: 389/2006
Date: 08 June 2006:13:53:06
Version: 1
Title: Two Gentoo Linux Security Advisories: 1. GLSA 200606-04 - Tor: Several vulnerabilities 2. GLSA 200606-05 - Pound: HTTP request smuggling
Abstract:
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo
Title
=====
Two Gentoo Linux Security Advisories:
1. GLSA 200606-04 - Tor: Several vulnerabilities
2. GLSA 200606-05 - Pound: HTTP request smuggling
Detail
======
1. Some integer overflows exist when adding elements to the smartlists.
Non-printable characters received from the network are not properly
sanitised before being logged. There are additional unspecified bugs in
the directory server and in the internal circuits.
2. Pound fails to handle HTTP requests with conflicting "Content-Length"
and "Transfer-Encoding" headers correctly.
1.
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Gentoo Linux Security Advisory GLSA 200606-04
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http://security.gentoo.org/
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Severity: Normal
Title: Tor: Several vulnerabilities
Date: June 07, 2006
Bugs: #134329
ID: 200606-04
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Synopsis
========
Tor is vulnerable to a possible buffer overflow, a Denial of Service,
information disclosure and information leak.
Background
==========
Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/tor < 0.1.1.20 >= 0.1.1.20
Description
===========
Some integer overflows exist when adding elements to the smartlists.
Non-printable characters received from the network are not properly
sanitised before being logged. There are additional unspecified bugs in
the directory server and in the internal circuits.
Impact
======
The possible buffer overflow may allow a remote attacker to execute
arbitrary code on the server by sending large inputs. The other
vulnerabilities can lead to a Denial of Service, a lack of logged
information, or some information disclosure.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Tor users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/tor-0.1.1.20"
References
==========
[ 1 ] CVE-2006-0414
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0414
[ 2 ] Tor ChangeLog
http://tor.eff.org/cvs/tor/ChangeLog
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200606-04.xml
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
http://bugs.gentoo.org.
License
=======
Copyright 2006 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
2.
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Gentoo Linux Security Advisory GLSA 200606-05
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http://security.gentoo.org/
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Severity: Low
Title: Pound: HTTP request smuggling
Date: June 07, 2006
Bugs: #118541
ID: 200606-05
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Synopsis
========
Pound is vulnerable to HTTP request smuggling, which could be exploited
to bypass security restrictions or poison web caches.
Background
==========
Pound is a reverse proxy, load balancer and HTTPS front-end. It allows
to distribute the load on several web servers and offers a SSL wrapper
for web servers that do not support SSL directly.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/pound < 2.0.5 >= 2.0.5
Description
===========
Pound fails to handle HTTP requests with conflicting "Content-Length"
and "Transfer-Encoding" headers correctly.
Impact
======
An attacker could exploit this vulnerability by sending HTTP requests
with specially crafted "Content-Length" and "Transfer-Encoding" headers
to bypass certain security restrictions or to poison the web proxy
cache.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Pound users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/pound-2.0.5"
References
==========
[ 1 ] CVE-2005-3751
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3751
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200606-05.xml
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
http://bugs.gentoo.org.
License
=======
Copyright 2006 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