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             AUSCERT External Security Bulletin Redistribution

                          ESB-2006.0145 -- [SCO]
            UnixWare 7.1.3 UnixWare 7.1.4 : Setuid ptrace Local
                    Privilege Escalation Vulnerability
                             27 February 2006

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           SCO UnixWare kernel
Publisher:         SCO
Operating System:  SCO UnixWare 7.1.4 and prior
Impact:            Root Compromise
Access:            Existing Account
CVE Names:         CAN-2005-2934

Original Bulletin: 
  ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.9/SCOSA-2006.9.txt

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______________________________________________________________________________

			SCO Security Advisory

Subject:		UnixWare 7.1.3 UnixWare 7.1.4 : Setuid ptrace Local Privilege Escalation Vulnerability
Advisory number: 	SCOSA-2006.9
Issue date: 		2006 February 21
Cross reference:	fz533176
			CVE-2005-2934
______________________________________________________________________________


1. Problem Description

	A local user can exploit the ptrace() system call to gain
	root privileges.
	
	The Common Vulnerabilities and Exposures project
	(cve.mitre.org) has assigned the name CVE-2005-2934 to
	this issue.


2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.3 	/etc/conf/pack.d/sum/Driver_atup.o /etc/conf/pack.d/sum/Driver_mp.o
	UnixWare 7.1.4 	/etc/conf/pack.d/sum/Driver_atup.o /etc/conf/pack.d/sum/Driver_mp.o



3. Solution

	The proper solution is to install the latest packages.


4. UnixWare 7.1.3

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.9


	4.2 Verification

	a31512eee4940c6ba048a1b1878ac4fc  p533176.713.image

	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 p533176.713.image to the /var/spool/pkg directory

	# pkgadd -d /var/spool/pkg/p533176.713.image


5. UnixWare 7.1.4

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.9


	5.2 Verification

	1b8fa986357036a8be043b642cc47e56  p533176.714.image

	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 p533176.714.image to the /var/spool/pkg directory

	# pkgadd -d /var/spool/pkg/p533176.714.image


6. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2934

	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 fz533176.


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 iDEFENSE for reporting this vulnerability.

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