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	    Caldera International, Inc. Security Advisory

Subject:		Open Unix, UnixWare: uux buffer overflow
Advisory number: 	CSSA-2001-SCO.11
Issue date: 		2001 August 15
Cross reference:
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1. Problem Description

	An exceedingly long argument to uux can cause a segmentation
	violation. This might be used by an unauthorized user to gain
	privilege.


2. Vulnerable Versions

	Operating System	Version		Affected Files
	------------------------------------------------------------------
	UnixWare 7		All		/usr/bin/uux
	Open Unix 8		All		/usr/bin/uux


3. Workaround

	None.


4. Open Unix, UnixWare

  4.1 Location of Fixed Binaries

	ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.11/


  4.2 Verification

	md5 checksums:
	
	5221f5660c4aec6138c3c7f792ee2bc9	erg711724a.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/erg711724a.Z
	# pkgadd -d /tmp/erg711724a


5. References

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

        This advisory addresses Caldera Security internal incident sr847565.


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.

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