___________________________________________________________________________

	    Caldera International, Inc. Security Advisory

Subject:		Open UNIX, UnixWare 7: CDE ToolTalk library buffer overflow
Advisory number: 	CSSA-2001-SCO.29
Issue date: 		2001 November 5
Cross reference:	CSSA-2001-SCO.29 (Issue date 2001 November 1)
___________________________________________________________________________


1. Problem Description
	
	There is a buffer overrun in the CDE ToolTalk library. Several
	programs in /usr/dt/bin use this library.


2. Vulnerable Versions

	Operating System	Version		Affected Files
	------------------------------------------------------------------
	UnixWare 7		All		/usr/dt/lib/libtt.so.1
	Open UNIX		8.0.0		/usr/dt/lib/libtt.so.1


3. Workaround

	None.


4. UnixWare 7, Open UNIX 8

  4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.29/


  4.2 Verification


  	[ Note: this binary was misnamed in the previous issue of this
  	advisory ]

	md5 checksums:
	
	5c51ac065aa98163ed2041f079ae285e	erg711870.Z


	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:

	# uncompress /tmp/erg711870.Z
	# pkgadd -d /tmp/erg711870


5. References

	This and other advisories are located at
		http://stage.caldera.com/support/security

	This advisory addresses Caldera Security internal incidents
	sr854237, fz519120, and erg711870.


6. Disclaimer

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


___________________________________________________________________________