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______________________________________________________________________________

			SCO Security Advisory

Subject:		Linux: buffer overflows and other security issues in squid
Advisory number: 	CSSA-2002-046.0
Issue date: 		2002 November 14
Cross reference:
______________________________________________________________________________


1. Problem Description

	From the Squid Team's SQUID-2002:3 advisory:

	- Several bugfixes and cleanup of the Gopher client, both to
	correct some security issues and to make Squid properly render
	certain Gopher menus.

	- Security fixes in how Squid parses FTP directory listings
	into HTML.

	- FTP data channels are now sanity checked to match the
	address of the requested FTP server. This to prevent theft or
	injection of data. See the new ftp_sanitycheck directive if
	this sanity check is not desired.

	- The MSNT auth helper has been updated to v2.0.3+fixes for
	buffer overflow security issues found in this helper.

	- A security issue in how Squid forwards proxy authentication
	credentials has been fixed.


2. Vulnerable Supported Versions

	System				Package
	----------------------------------------------------------------------

	OpenLinux 3.1.1 Server		prior to squid-2.5-20020429.i386.rpm

	OpenLinux 3.1 Server		prior to squid-2.5-20020429.i386.rpm


3. Solution

	The proper solution is to install the latest packages. Many
	customers find it easier to use the Caldera System Updater, called
	cupdate (or kcupdate under the KDE environment), to update these
	packages rather than downloading and installing them by hand.


4. OpenLinux 3.1.1 Server

	4.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2002-046.0/RPMS

	4.2 Packages

	fdda342fe954cf6ea304046781a555c8	squid-2.5-20020429.i386.rpm

	4.3 Installation

	rpm -Fvh squid-2.5-20020429.i386.rpm

	4.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2002-046.0/SRPMS

	4.5 Source Packages

	379f8d5732aaa5ec8bcb4f80e061c501	squid-2.5-20020429.src.rpm


5. OpenLinux 3.1 Server

	5.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-046.0/RPMS

	5.2 Packages

	23eb5b61f6c05ec3c0d0c79ee3cc7fa4	squid-2.5-20020429.i386.rpm

	5.3 Installation

	rpm -Fvh squid-2.5-20020429.i386.rpm

	5.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-046.0/SRPMS

	5.5 Source Packages

	3d322a9bbff5bcb0b320d1cdc0f67037	squid-2.5-20020429.src.rpm


6. References

	Specific references for this advisory:
		http://www.squid-cache.org/Advisories/SQUID-2002_3.txt
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0713

	SCO security resources:
		http://www.sco.com/support/security/index.html

	This security fix closes SCO incidents sr866628, fz521510,
	erg501626.


7. Disclaimer

	SCO is not responsible for the misuse of any of the information
	we provide on this website and/or through our security
	advisories. Our advisories are a service to our customers intended
	to promote secure installation and use of SCO products.


8. Acknowledgements

	SCO wishes to thank The Squid HTTP Proxy team for the fixes.

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