bugtraq - UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : CDE dtlogin unspecified double free

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Date: Thu, 7 Apr 2005 12:44:04 -0700
From: please_reply_to_security@....com
To: security-announce@...t.sco.com, bugtraq@...urityfocus.com,
	full-disclosure@...ts.netsys.com
Subject: UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : CDE dtlogin unspecified double free



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______________________________________________________________________________

			SCO Security Advisory

Subject:		UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : CDE dtlogin unspecified double free
Advisory number: 	SCOSA-2005.18
Issue date: 		2005 April 7
Cross reference:	sr890079 fz529303 erg712592 CAN-2004-0368 CERT VU#179804
______________________________________________________________________________


1. Problem Description

	The Common Desktop Environment (CDE) dtlogin utility is
	used to log into a CDE session. The CDE dtlogin utility has
	a double-free vulnerability in the X Display Manager Control
	Protocol (XDMCP). By sending a specially-crafted XDMCP
	packet to a vulnerable system, a remote attacker could
	obtain sensitive information, cause a denial of service or
	execute arbitrary code on the system. 

	CERT Vulnerability Note VU#179804, Common Desktop Environment 
	(CDE) dtlogin improperly deallocates memory at 
	http://www.kb.cert.org/vuls/id/179804. 

	The Common Vulnerabilities and Exposures project (cve.mitre.org) 
	has assigned the name CAN-2004-0368 to this issue.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.4 			/usr/dt/bin/dtgreet
					/usr/dt/bin/dtlogin
					/usr/dt/lib/libDtLogin.so.1

	UnixWare 7.1.3 			/usr/dt/bin/dtgreet
					/usr/dt/bin/dtlogin
					/usr/dt/lib/libDtLogin.so.1

	UnixWare 7.1.1 			See Maintenance Pack 5 notes
				
			
3. Solution

	The proper solution is to install the latest packages.

4. UnixWare 7.1.4

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.18

	4.2 Verification

	MD5 (erg712592.pkg.Z) = d3714b22a624db25740f5539c063d407

	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:

	Download erg712592.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712592.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712592.pkg


5. UnixWare 7.1.3

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.18


	5.2 Verification

	MD5 (erg712592.713.pkg.Z) = fc8d0c4f0ebdcf65504d1b4985c7ba52

	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:

	Download erg712592.713.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712592.713.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712592.713.pkg


6. UnixWare 7.1.1 uw711mp5

	6.1 Location of Fixed Binaries

	The fixes are available in SCO UnixWare Release 7.1.1
        Maintenance Pack 5 or later.  See

        ftp://ftp.sco.com/pub/unixware7/uw711pk/uw711mp5.txt
        and
        ftp://ftp.sco.com/pub/unixware7/uw711pk/uw711mp5_errata.txt

	6.2 Verification

	MD5 (uw711mp5.cpio.Z) = 50bd66b7d57b2025da9dca4010d0ab1a

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

	6.3 Installing Fixed Binaries

	See uw711mp5.txt and uw711mp5_errata.txt for install instructions.


7. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0368

	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 sr890079 fz529303
	erg712592.


8. 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.


9. Acknowledgments

	SCO would like to thank Dave Aitel

______________________________________________________________________________

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