bugtraq - Security Update: [CSSA-2003-SCO.9] OpenServer 5.0.5 OpenServer 5.0.6 : Buffer overflows and other security vulnerabilities in Squid

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Date: Tue, 27 May 2003 11:20:23 -0700
From: security@....com
To: bugtraq@...urityfocus.com, announce@...ts.caldera.com,
	scoannmod@...itec.on.ca
Subject: Security Update: [CSSA-2003-SCO.9] OpenServer 5.0.5 OpenServer 5.0.6 : Buffer overflows and other security vulnerabilities in Squid

To: bugtraq@...urityfocus.com announce@...ts.caldera.com scoannmod@...itec.on.ca

______________________________________________________________________________

			SCO Security Advisory

Subject:		OpenServer 5.0.5 OpenServer 5.0.6 : Buffer overflows and other security vulnerabilities in Squid
Advisory number: 	CSSA-2003-SCO.9
Issue date: 		2003 May 27
Cross reference:
______________________________________________________________________________


1. Problem Description

	 Vulnerability in Squid related to proxy authentication
	 credentials may allow remote web sites to obtain the user's
	 proxy login and password.

	 FTP proxy in Squid does not compare the IP addresses of
	 control and data connections with the FTP server, which
	 allows remote attackers to bypass firewall rules or spoof FTP
	 server responses.

	 Buffer overflows in Squid allow remote attackers to cause a
	 denial of service (crash) and possibly execute arbitrary code
	 (1) via the MSNT auth helper (msnt_auth) when using denyusers
	 or allowusers files, (2) via the gopher client, or (3) via
	 the FTP server directory listing parser when HTML output is
	 generated.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	OpenServer 5.0.5 		Squid distribution
	OpenServer 5.0.6		Squid distribution


3. Solution

	The proper solution is to install the latest packages.


4. OpenServer 5.0.5

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.9


	4.2 Verification

	MD5 (VOL.000.000) = a4abc782d87415df7369a0483e3b1554
	MD5 (VOL.000.001) = d91c192ac5ec45fe609d5a58fdf736b5
	MD5 (VOL.000.002) = af55795c6ebbe9012c9eb5d8b2f6e57a
	MD5 (VOL.000.003) = c5a74b7f6ab24a311b2fc24f01740ffe

	md5 is available for download from
		ftp://ftp.sco.com/pub/security/tools


	4.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following sequence:

	1) Download the VOL* files to the /tmp directory

	2) Run the custom command, specify an install from media
	images, and specify the /tmp directory as the location of
	the images.


5. OpenServer 5.0.6

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenServer/CSSA-2003-SCO.9


	5.2 Verification

	MD5 (VOL.000.000) = a4abc782d87415df7369a0483e3b1554
	MD5 (VOL.000.001) = d91c192ac5ec45fe609d5a58fdf736b5
	MD5 (VOL.000.002) = af55795c6ebbe9012c9eb5d8b2f6e57a
	MD5 (VOL.000.003) = c5a74b7f6ab24a311b2fc24f01740ffe

	md5 is available for download from
		ftp://ftp.sco.com/pub/security/tools


	5.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following sequence:

	1) Download the VOL* files to the /tmp directory

	2) Run the custom command, specify an install from media
	images, and specify the /tmp directory as the location of
	the images.


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=CVE-2002-0714
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0713
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0715

	SCO security resources:

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

	This security fix closes SCO incidents sr866632, fz521515,
	erg501628.


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

	The Squid Team discovered and researched these vulnerabilities.

______________________________________________________________________________

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