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			SCO Security Advisory

Subject:		Linux: Apache mod_dav module format string vulnerability
Advisory number: 	CSSA-2003-007.0
Issue date: 		2003 February 17
Cross reference:
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1. Problem Description

	The Apache mod_dav module contains a format string vulnerability
	in the "ap_log_rerror()" function.


2. Vulnerable Supported Versions

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

	OpenLinux 3.1.1 Server		prior to mod_dav-1.0.2_1.3.6-3.i386.rpm
					prior to mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	OpenLinux 3.1.1 Workstation	prior to mod_dav-1.0.2_1.3.6-3.i386.rpm
					prior to mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	OpenLinux 3.1 Server		prior to mod_dav-1.0.2_1.3.6-3.i386.rpm
					prior to mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	OpenLinux 3.1 Workstation	prior to mod_dav-1.0.2_1.3.6-3.i386.rpm
					prior to mod_dav-devel-1.0.2_1.3.6-3.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.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-007.0/RPMS

	4.2 Packages

	bcb45e6cffe4b274dd2363b6880a9164	mod_dav-1.0.2_1.3.6-3.i386.rpm
	ef8f5066aa46ee037f69550b8438a322	mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	4.3 Installation

	rpm -Fvh mod_dav-1.0.2_1.3.6-3.i386.rpm
	rpm -Fvh mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	4.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-007.0/SRPMS

	4.5 Source Packages

	d28984d21aca280a74588b98459a9e4e	mod_dav-1.0.2_1.3.6-3.src.rpm


5. OpenLinux 3.1.1 Workstation

	5.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-007.0/RPMS

	5.2 Packages

	ddace8089a1a4eea49db6b86b10ad38f	mod_dav-1.0.2_1.3.6-3.i386.rpm
	83d069194ae139ea7e967fcfb6679db1	mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	5.3 Installation

	rpm -Fvh mod_dav-1.0.2_1.3.6-3.i386.rpm
	rpm -Fvh mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	5.4 Source Package Location

	SRPMS

	5.5 Source Packages

	fa28668cc98cac3ad22eee23e77c2693	mod_dav-1.0.2_1.3.6-3.src.rpm


6. OpenLinux 3.1 Server

	6.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-007.0/RPMS

	6.2 Packages

	3853d37862ee61ddd9720fdf17d58bf4	mod_dav-1.0.2_1.3.6-3.i386.rpm
	739ca25c48cf6708066d94526bf2ec7d	mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	6.3 Installation

	rpm -Fvh mod_dav-1.0.2_1.3.6-3.i386.rpm
	rpm -Fvh mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	6.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-007.0/SRPMS

	6.5 Source Packages

	35f41886e5019c46aa2504f5c3338c2e	mod_dav-1.0.2_1.3.6-3.src.rpm


7. OpenLinux 3.1 Workstation

	7.1 Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-007.0/RPMS

	7.2 Packages

	9bce03b0080e3f088c315fd7ed0eee49	mod_dav-1.0.2_1.3.6-3.i386.rpm
	6105508bfa30dec40785269e97152836	mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	7.3 Installation

	rpm -Fvh mod_dav-1.0.2_1.3.6-3.i386.rpm
	rpm -Fvh mod_dav-devel-1.0.2_1.3.6-3.i386.rpm

	7.4 Source Package Location

	ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-007.0/SRPMS

	7.5 Source Packages

	83429117c53516e8e94e1c36e25446f5	mod_dav-1.0.2_1.3.6-3.src.rpm


8. References

	Specific references for this advisory:

		http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0842

	SCO security resources:

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

	This security fix closes SCO incidents sr869830, fz526205,
	erg712132.


9. 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.


10. Acknowledgements

	David Litchfield discovered and investigated this vulnerability.

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