From security@sco.com Thu Nov 24 10:58:50 2005
From: security@sco.com
To: security-announce@list.sco.com
Date: Thu, 24 Nov 2005 10:54:55 -0500 (EST)
Subject: [Full-disclosure] SCOSA-2005.51 OpenServer 5.0.7 OpenServer 6.0.0 : CUPS Denial of Service Vulnerability

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 			SCO Security Advisory

Subject:		OpenServer 5.0.7 OpenServer 6.0.0 : CUPS Denial of Service Vulnerability
Advisory number:	SCOSA-2005.51
Issue date:		2005 November 24
Cross reference:	fz533150
 			sr891399 fz530152 erg712687
 			CVE-2004-0558 CVE-2005-2874

______________________________________________________________________________


1. Problem Description

 	A remote user can cause the CUPS service to hang and consume all
 	available CPU resources.

 	The Common Vulnerabilities and Exposures project (cve.mitre.org)
 	has assigned the name CVE-2005-2874 to this issue.

 	The OpenServer 5.0.7 CUPS is additionally vulnerable to the
 	following:

 	CUPS versions prior to 1.1.21 are vulnerable to a denial of
 	service attack. By sending a specially-crafted UDP packet to the
 	IPP port, a remote attacker could cause a denial of service.

 	The Common Vulnerabilities and Exposures project (cve.mitre.org)
 	has assigned the name CVE-2004-0558 to this issue.


2. Vulnerable Supported Versions

 	System				Binaries
 	----------------------------------------------------------------------
 	OpenServer 5.0.7 		cups distribution
 	OpenServer 6.0.0 		cups distribution


3. Solution

 	The proper solution is to install the latest packages.


4. OpenServer 5.0.7

 	4.1 Location of Fixed Binaries

 	The fixes are only available in SCO OpenServer Release 5.0.7
 	Maintenance Pack 4 or later.

 	ftp://ftp.sco.com/pub/openserver5/507/mp/osr507mp4/osr507mp4_vol.tar


 	4.2 Verification

 	MD5 (osr507mp4_vol.tar) = 4c87d840ff5b43221258547d19030228

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


 	4.3 Installing Fixed Binaries

 	See the SCO OpenServer Release 5.0.7 Maintenance Pack 4 Release
 	and Installation Notes:

 	ftp://ftp.sco.com/pub/openserver5/507/mp/osr507mp4/osr507mp4.htm


5. OpenServer 6.0.0

 	5.1 Location of Fixed Binaries

 	ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.51


 	5.2 Verification

 	MD5 (VOL.000.000) = 99663199247aa130ffe9c3bfa4a349db

 	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 a directory.

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


6. References

 	Specific references for this advisory:
 		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0558
 		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2874
 		http://securitytracker.com/id?1012811
 		http://www.cups.org/relnotes.php#010123
 		http://www.cups.org/str.php?L1042+P0+S-1+C0+I0+E0+Q1042
 		http://xforce.iss.net/xforce/xfdb/17389

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

 	SCO security advisories via email
 		http://www.sco.com/support/forums/security.html

 	This security fix closes SCO incidents fz533150 sr891399
 	fz530152 erg712687.


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.


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