bugtraq - UnixWare 7.1.4 UnixWare 7.1.3 : ppp buffer overflow

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Message-ID: <20051020154619.A5402@caldera.com>
Date: Thu, 20 Oct 2005 15:46:19 -0700
From: please_reply_to_security@....com
To: security-announce@...t.sco.com, bugtraq@...urityfocus.com,
	full-disclosure@...ts.grok.org.uk
Subject: UnixWare 7.1.4 UnixWare 7.1.3 : ppp buffer
	overflow



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______________________________________________________________________________

			SCO Security Advisory

Subject:		UnixWare 7.1.4 UnixWare 7.1.3 : ppp buffer overflow
Advisory number: 	SCOSA-2005.41
Issue date: 		2005 October 20
Cross reference:	sr894991 fz532994 erg712940 CAN-2005-2927
______________________________________________________________________________


1. Problem Description

	iDEFENSE has identified a Buffer Overflow vulnerability in
	SCO Unixware ppp prompt. Local exploitation of a buffer
	overflow vulnerability in the ppp binary, allows attackers 
	to gain root privileges. 

	This could lead to the execution of arbitrary code with root
	privileges, as ppp is setuid root by default. 

	The Common Vulnerabilities and Exposures project (cve.mitre.org) 
	has assigned the following name CAN-2005-2927 to this issue.

2. Vulnerable Supported Versions

	System				Binaries
	----------------------------------------------------------------------
	UnixWare 7.1.4 			/usr/bin/ppptalk
	UnixWare 7.1.3 			/usr/bin/ppptalk

3. Solution

	The proper solution is to install the latest packages.

4. UnixWare 7.1.4

	4.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.41

	4.2 Verification

	MD5 (erg712940.uw714.pkg.Z) = d47a9958e6dfd44c9b95e1d9489011f4

	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 erg712940.uw714.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712940.uw714.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712940.uw714.pkg


5. UnixWare 7.1.3

	5.1 Location of Fixed Binaries

	ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.41

	5.2 Verification

	MD5 (erg712940.uw713.pkg.Z) = 474799fc2cda9db5c486880599e1cdcc

	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 erg712940.uw713.pkg.Z to the /var/spool/pkg directory

	# uncompress /var/spool/pkg/erg712940.uw713.pkg.Z
	# pkgadd -d /var/spool/pkg/erg712940.uw713.pkg


6. References

	Specific references for this advisory:
		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2927

	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 sr894991 fz532994
	erg712940.


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

	The SCO Group would like to thank iDefense for discovering and
	reporting this weakness.

______________________________________________________________________________

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