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______________________________________________________________________________
		   Caldera Systems, Inc.  Security Advisory

Subject:		Security problems in xpdf
Advisory number: 	CSSA-2000-031.0
Issue date: 		2000 September, 11
Cross reference:
______________________________________________________________________________


1. Problem Description

   There are two security problems in xpdf, the PDF file viewer.
   The first is that temporary files were created insecurely.

   The second problem is that xpdf was not cautious enough when the
   user clicked on a URL. Xpdf would start the URL viewer (netscape
   by default) via the system shell, not properly taking care of
   shell meta characters. This problem could be exploited by
   creating PDF files that ran malicious code when the user selected
   a URL in the document.

2. Vulnerable Versions

   System                       Package
   -----------------------------------------------------------
   OpenLinux Desktop 2.3        All packages previous to
   				xpdf-0.91-3

   OpenLinux eServer 2.3        All packages previous to
   and OpenLinux eBuilder       xpdf-0.91-3

   OpenLinux eDesktop 2.4	All packages previous to
                                xpdf-0.91-3

3. Solution

   Workaround:

   None known.

4. OpenLinux Desktop 2.3

   4.1 Location of Fixed Packages

       The upgrade packages can be found on Caldera's FTP site at:

       ftp://ftp.calderasystems.com/pub/updates/OpenLinux/2.3/current/RPMS/

       The corresponding source code package can be found at:

       ftp://ftp.calderasystems.com/pub/updates/OpenLinux/2.3/current/SRPMS

   4.2 Verification

   6582e3df8c2e677d4a7a0208322893eb  RPMS/xpdf-0.91-3.i386.rpm
   cdeff2eb8b34c433fa4e35ae08766c37  SRPMS/xpdf-0.91-3.src.rpm

   4.3 Installing Fixed Packages

       Upgrade the affected packages with the following commands:

	  rpm -Fhv xpdf-0.91-3.i386.rpm

5. OpenLinux eServer 2.3 and OpenLinux eBuilder for ECential 3.0

   5.1 Location of Fixed Packages

       The upgrade packages can be found on Caldera's FTP site at:

       ftp://ftp.calderasystems.com/pub/updates/eServer/2.3/current/RPMS/

       The corresponding source code package can be found at:

       ftp://ftp.calderasystems.com/pub/updates/eServer/2.3/current/SRPMS

   5.2 Verification

   f0cf08c9febe6c7e16500812a140f846  RPMS/xpdf-0.91-3.i386.rpm
   cdeff2eb8b34c433fa4e35ae08766c37  SRPMS/xpdf-0.91-3.src.rpm

   5.3 Installing Fixed Packages

       Upgrade the affected packages with the following commands:

	  rpm -Fhv xpdf-0.91-3.i386.rpm

6. OpenLinux eDesktop 2.4

   6.1 Location of Fixed Packages

       The upgrade packages can be found on Caldera's FTP site at:

       ftp://ftp.calderasystems.com/pub/updates/eDesktop/2.4/current/RPMS/

       The corresponding source code package can be found at:

       ftp://ftp.calderasystems.com/pub/updates/eDesktop/2.4/current/SRPMS

   6.2 Verification

   696e6851ecd8b348a9b4c0ef18fd94bd  RPMS/xpdf-0.91-3.i386.rpm
   cdeff2eb8b34c433fa4e35ae08766c37  SRPMS/xpdf-0.91-3.src.rpm

   6.3 Installing Fixed Packages

       Upgrade the affected packages with the following commands:

	  rpm -Fhv xpdf-0.91-3.i386.rpm

7. References

   This and other Caldera security resources are located at:

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

   This security fix closes Caldera's internal Problem Report 7686.

8. Disclaimer

   Caldera Systems, 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 OpenLinux.

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