Date: Thu, 25 Jan 2007 21:24:23 +0100
From: Matthias Geerdsen <vorlon@gentoo.org.>
To: [email protected]Subject: [ GLSA 200701-22 ] Squid: Multiple Denial of Service vulnerabilities
X-Enigmail-Version: 0.94.1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
protocol="application/pgp-signature";
boundary="------------enig7C7C3F468BCDA20C8421B5CD"
X-Virus-Scanned: antivirus-gw at tyumen.ru
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig7C7C3F468BCDA20C8421B5CD
Content-Type: text/plain; charset=ISO-8859-15
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200701-22
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: Squid: Multiple Denial of Service vulnerabilities
Date: January 25, 2007
Bugs: #162364
ID: 200701-22
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
Two vulnerabilities have been found in Squid which make it susceptible
to Denial of Service attacks.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Squid is a multi-protocol proxy server.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-proxy/squid < 2.6.7 >=3D 2.6.7
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Squid fails to correctly handle ftp:// URI's. There is also an error in
the external_acl queue which can cause an infinite looping condition.
Impact
=3D=3D=3D=3D=3D=3D
An attacker could attempt to retrieve a specially crafted URI via a
Squid server causing the service to crash. If an attacker could
generate a sufficiently high load on the Squid services, they could
cause a Denial of Service by forcing Squid into an infinite loop.
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 Squid users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-proxy/squid-2.6.7"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2007-0247
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0247
[ 2 ] CVE-2007-0248
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0248
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:
http://security.gentoo.org/glsa/glsa-200701-22.xml
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
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
Copyright 2007 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
--------------enig7C7C3F468BCDA20C8421B5CD
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
iD8DBQFFuRIIGc/RGrFqUYMRAorlAJ42vT7qgT40lHaRCctGmjhBzDMo3ACfcmyO
Hxb/yFiDKS/pRotbvGkFlY0=
=la6R
-----END PGP SIGNATURE-----
--------------enig7C7C3F468BCDA20C8421B5CD--
