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		Caldera International, Inc.  Security Advisory

Subject:		Linux: REVISED: PHP multipart/form-data vulnerabilities
Advisory number: 	CSSA-2002-023.1
Issue date: 		2002 August 07
Cross reference:
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1. Problem Description

	Several flaws have been found in the way PHP handles
	multipart/form-data POST requests. Each of the flaws could
	allow an attacker to execute arbitrary code on the victim's
	system.

	The packages for this updated advisory (CSSA-2002-023.1)
	resolve a possible problem with installation, with the
	installation script failing, and subsequent examination of the
	RPM database would show it to be corrupted. The updated
	packages also allow co-existence with the Volution Messaging
	Server.


2. Vulnerable Supported Versions

	System				Package
	----------------------------------------------------------------------

	OpenLinux 3.1.1 Server		prior to php-4.0.6-4.i386.rpm
					prior to php-doc-4.0.6-4.i386.rpm

	OpenLinux 3.1.1 Workstation	prior to php-4.0.6-4.i386.rpm
					prior to php-doc-4.0.6-4.i386.rpm

	OpenLinux 3.1 Server		prior to php-4.0.6-4.i386.rpm
					prior to php-doc-4.0.6-4.i386.rpm

	OpenLinux 3.1 Workstation	prior to php-4.0.6-4.i386.rpm
					prior to php-doc-4.0.6-4.i386.rpm


3. Solution

	The proper solution is to install the latest packages. Many
	customers find it easier to use the Caldera System Updater, called
	cupdate (or kcupdate under the KDE environment), to update these
	packages rather than downloading and installing them by hand.


4. OpenLinux 3.1.1 Server

	4.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2002-023.1/RPMS

	4.2 Packages

	b6c4a60b2aa1dfbfd5eea2d73bac009c	php-4.0.6-4.i386.rpm
	b7810fd8edaf0a9875fe3ddd7c45e2bb	php-doc-4.0.6-4.i386.rpm

	4.3 Installation

	rpm -Fvh php-4.0.6-4.i386.rpm
	rpm -Fvh php-doc-4.0.6-4.i386.rpm

	4.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2002-023.1/SRPMS

	4.5 Source Packages

	35a4f2e4b3b63442383aa6f645170c44	php-4.0.6-4.src.rpm


5. OpenLinux 3.1.1 Workstation

	5.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2002-023.1/RPMS

	5.2 Packages

	038b647978b1f607c9c2fd1a18a2e034	php-4.0.6-4.i386.rpm
	8347cc0b299a293a0cacea5b77591db0	php-doc-4.0.6-4.i386.rpm

	5.3 Installation

	rpm -Fvh php-4.0.6-4.i386.rpm
	rpm -Fvh php-doc-4.0.6-4.i386.rpm

	5.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2002-023.1/SRPMS

	5.5 Source Packages

	a546510c8d693fea21bf2bb5b2969e47	php-4.0.6-4.src.rpm


6. OpenLinux 3.1 Server

	6.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-023.1/RPMS

	6.2 Packages

	37681ffd433b3939400b94fcfe9e8217	php-4.0.6-4.i386.rpm
	13123f111eb63760ac4c45765cb810ba	php-doc-4.0.6-4.i386.rpm

	6.3 Installation

	rpm -Fvh php-4.0.6-4.i386.rpm
	rpm -Fvh php-doc-4.0.6-4.i386.rpm

	6.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-023.1/SRPMS

	6.5 Source Packages

	df4e0d0d4a6b0f636320cda0112dffd3	php-4.0.6-4.src.rpm


7. OpenLinux 3.1 Workstation

	7.1 Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2002-023.1/RPMS

	7.2 Packages

	e7175b73a2758efb1cfe36806f6ae812	php-4.0.6-4.i386.rpm
	d9dd669f89a7897341c3e9599daaae97	php-doc-4.0.6-4.i386.rpm

	7.3 Installation

	rpm -Fvh php-4.0.6-4.i386.rpm
	rpm -Fvh php-doc-4.0.6-4.i386.rpm

	7.4 Source Package Location

	ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2002-023.1/SRPMS

	7.5 Source Packages

	aedf02dcc3a98acfb2b9e66443db6896	php-4.0.6-4.src.rpm


8. References

	Specific references for this advisory:
		http://www.kb.cert.org/vuls/id/297363
		http://bugs.php.net/bug.php?id=15736
		http://security.e-matters.de/advisories/012002.html

	Caldera security resources:
		http://www.caldera.com/support/security/index.html

	This security fix closes Caldera incidents sr861013, fz520246,
	fz521639, erg711976, erg711968, erg712096.


9. Disclaimer

	Caldera International, Inc. 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 Caldera products.


10. Acknowledgements

	Stefan Esser (s.esser@e-matters.de) reported these
	vulnerabilities.

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