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			SCO Security Advisory

Subject:		UnixWare 7.1.3 Open UNIX 8.0.0 UnixWare 7.1.1 : perl unsafe Safe compartment
Advisory number: 	SCOSA-2004.1
Issue date: 		2004 March 29
Cross reference: 	sr887197 fz528449 erg712495 CAN-2002-1323
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1. Problem Description

	Safe.pm 2.0.7 and earlier, when used in Perl 5.8.0 and
	earlier, may allow attackers to break out of safe compartments
	in (1) Safe::reval or (2) Safe::rdo using a redefined @_
	variable, which is not reset between successive calls. 
	
	The Common Vulnerabilities and Exposures project (cve.mitre.org)
	has assigned the name CAN-2002-1323 to this issue.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.3 		/usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm	
	Open UNIX 8.0.0 	/usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm
	UnixWare 7.1.1 		/usr/gnu/lib/perl5/i386-svr4/5.00404/Safe.pm

3. Solution

	The proper solution is to install the latest packages.


4. UnixWare 7.1.3 
   Open UNIX 8.0.0
   UnixWare 7.1.2

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2004.1


	4.2 Verification

	MD5 (erg712495.Z) = a58a6ad7b7ea39ee48abc8bc3cc0d4fe

	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:

	1. Download the erg712495.Z file to a directory on your machine.

	2. As root, uncompress the file and add the package to your system
	using these commands:

        # uncompress erg712495.Z
        # pkgadd -d erg712495

	3. There is no need to reboot the system after installing this package.


	If you have questions regarding this supplement, or the product on
	which it is installed, please contact your software supplier.

5. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1323

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

	SCO Security Advisories via email:
		http://www.thescogroup.com/support/forums/security.html

	This security fix closes SCO incidents sr887197 fz528449
	erg712495.


6. 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.


7. Acknowledgments

	SCO would like to thank Andreas Jurenda

	If you would like to receive SCO Security Advisories please visit:
	http://www.thescogroup.com/support/forums/announce.html

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