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From: security at caldera.com (security@...dera.com)
Subject: Security Update: [CSSA-2002-SCO.41] UnixWare 7.1.1 Open UNIX 8.0.0 : rcp of /proc causes denial-of-service

To: bugtraq@...urityfocus.com announce@...ts.caldera.com scoannmod@...itec.on.ca full-disclosure@...ts.netsys.com


______________________________________________________________________________

			SCO Security Advisory

Subject:		UnixWare 7.1.1 Open UNIX 8.0.0 : rcp of /proc causes denial-of-service
Advisory number: 	CSSA-2002-SCO.41
Issue date: 		2002 October 21
Cross reference:
______________________________________________________________________________


1. Problem Description

	An rcp of /proc by a normal user can cause the entire system
	to be unusable.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.1			/etc/conf/pack.d/fs/Driver_atup.o
					/etc/conf/pack.d/fs/Driver_mp.o
	Open UNIX 8.0.0 		/etc/conf/pack.d/fs/Driver_atup.o
					/etc/conf/pack.d/fs/Driver_mp.o


3. Solution

	The proper solution is to install the latest packages.


4. UnixWare 7.1.1

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2002-SCO.41


	4.2 Verification

	MD5 (erg712112c.pkg.Z) = 106da290e2483bc7aba11d7f486b50c4

	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 erg712112c.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712112c.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712112c.pkg


5. Open UNIX 8.0.0

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2002-SCO.41


	5.2 Verification

	MD5 (erg712112d.pkg.Z) = b0e485feccbbe76aefb4061f9b7e6192

	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 erg712112d.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712112d.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712112d.pkg


6. References

	Specific references for this advisory:
		http://mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1231

	SCO security resources:
		http://www.sco.com/support/security/index.html

	This security fix closes SCO incidents sr868418, fz525927,
	erg712112.


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.

______________________________________________________________________________
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