[gentoo-announce] [ GLSA 200903-38 ] Squid: Multiple Denial of Service vulnerabilities

[news 28]

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Gentoo Linux Security Advisory GLSA 200903-38

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http://security.gentoo.org/

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Severity: Normal

Title: Squid: Multiple Denial of Service vulnerabilities

Date: March 24, 2009

Bugs: #216319, #257585

ID: 200903-38

 

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Synopsis

========

 

Multiple vulnerabilities have been found in Squid which allow for

remote Denial of Service attacks.

 

Background

==========

 

Squid is a full-featured web proxy cache.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 net-proxy/squid < 2.7.6 >= 2.7.6

 

Description

===========

 

* The arrayShrink function in lib/Array.c can cause an array to

shrink to 0 entries, which triggers an assert error. NOTE: this issue

is due to an incorrect fix for CVE-2007-6239 (CVE-2008-1612).

 

* An invalid version number in a HTTP request may trigger an

assertion in HttpMsg.c and HttpStatusLine.c (CVE-2009-0478).

 

Impact

======

 

The issues allows for Denial of Service attacks against the service via

an HTTP request with an invalid version number and other specially

crafted requests.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All Squid users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=net-proxy/squid-2.7.6"

 

References

==========

 

[ 1 ] CVE-2007-6239

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6239

[ 2 ] CVE-2008-1612

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1612

[ 3 ] CVE-2009-0478

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0478

[ 4 ] GLSA-200801-05

http://www.gentoo.org/security/en/glsa/glsa-200801-05.xml

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200903-38.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 ( -at -) gentoo.org or alternatively, you may file a bug at

http://bugs.gentoo.org.

 

License

=======

 

Copyright 2009 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