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	    Caldera International, Inc. Security Advisory

Subject:		Open UNIX 8, UnixWare 7: dtterm argument buffer overflow
Advisory number: 	CSSA-2001-SCO.26
Issue date: 		2001 October 17
Cross reference:
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1. Problem Description
	
	Very long arguments to the dtterm command cause an argument
	buffer overflow.  This could be used by an unauthorized user
	to gain privilege.


2. Vulnerable Versions

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


3. Workaround

	None.


4. Open UNIX 8, UnixWare 7

  4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.26/


  4.2 Verification

	md5 checksums:
	
	70adbc8b1f3419f42ad2fd100eaad5c8	erg711857b.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:

	# scologin stop
	# uncompress /tmp/erg711857b.Z
	# pkgadd -d /tmp/erg711857b
	# scologin start


5. References

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

	This advisory addresses Caldera Security internal incidents
	sr853007, fz518986 and erg711857.

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.


7. Acknowledgements

	Caldera International wishes to thank Aycan Irican
	<aycan@prosoft.com.tr> for discovering and reporting this
	problem.

	 
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