To: bugtraq@securityfocus.com announce@lists.caldera.com scoannmod@xenitec.on.ca


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		Caldera International, Inc.  Security Advisory

Subject:		Open UNIX 8.0.0 UnixWare 7.1.1 : Buffer overflow in libX11 with -xrm
Advisory number: 	CSSA-2002-SCO.15
Issue date: 		2002 April 11
Cross reference:
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1. Problem Description

	There is a buffer overflow in the X11 library such that any
	command linked with it that accepts the -xrm option will
	core dump if a long string is used as the argument. Any
	setuid setgid program that accepts the -xrm option is
	vulnerable to attack.


2. Vulnerable Supported Versions

	System				Package
	----------------------------------------------------------------------
	Open UNIX 8.0.0 		basex
	UnixWare 7.1.1			basex


3. Solution

	The proper solution is to install the latest packages.


4. Open UNIX 8.0.0

	4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15


4.2 Verification

	MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5

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


4.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following commands:

	Download basex.711b.pkg to the /var/spool/pkg directory

	# pkgadd -d /var/spool/pkg/basex.711b.pkg


5. UnixWare 7.1.1

	5.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15


5.2 Verification

	MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5

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


5.3 Installing Fixed Binaries

	Upgrade the affected binaries with the following commands:

	Download basex.711b.pkg to the /var/spool/pkg directory

	# pkgadd -d /var/spool/pkg/basex.711b.pkg


6. References

	Specific references for this advisory:
		none

	Caldera UNIX security resources:
		http://stage.caldera.com/support/security/

Caldera OpenLinux security resources:
		http://www.caldera.com/support/security/index.html

This security fix closes Caldera incidents sr858540, fz519799,
	erg711938.


7. Disclaimer

	Caldera International, Inc. 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 Caldera products.