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______________________________________________________________________________

			SCO Security Advisory

Subject:		UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : mountd remote denial of service
Advisory number: 	SCOSA-2005.1
Issue date: 		2005 January 11
Cross reference:	sr892156 fz530479 erg712731 CAN-2004-1039
______________________________________________________________________________


1. Problem Description

	mountd is not enabled by default. But when the NFS mountd service
	is run by inetd, if a NFS mount related request is received
	from the remote (or local) host, inetd will repeatedly
	create the mountd process and as a result increasingly
	consume memory. 

	The Common Vulnerabilities and Exposures project (cve.mitre.org) 
	has assigned the name CAN-2004-1039 to this issue.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.4 			/usr/lib/nfs/tmp/mountd
	UnixWare 7.1.3 			/usr/lib/nfs/tmp/mountd
	UnixWare 7.1.1 			/usr/lib/nfs/mountd

3. Solution

	The proper solution is to install the latest packages.

4. UnixWare 7.1.4 / UnixWare 7.1.3

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.1

	4.2 Verification

	MD5 (erg712731.pkg.Z) = 69067669ac277725e8665ac02f955607

	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 erg712731.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712731.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712731.pkg


5. UnixWare 7.1.1

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.1


	5.2 Verification

	MD5 (erg712731.711.pkg.Z) = 4f7e3bba1e5381e28bef0894dc1d9ec1

	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 erg712731.711.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712731.711.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712731.711.pkg


6. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1039
		http://www.nilesoft.co.kr/

	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 sr892156 fz530479
	erg712731.


7. 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.


8. Acknowledgments

	SCO would like to thank Yun Jonglim a security researcher
	of NileSOFT, Ltd (www.nilesoft.co.kr) for reporting this
	issue.

______________________________________________________________________________

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