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Caldera Systems Security Advisory: temp file problems in inn

Jan 16, 2001, 20:24 (0 Talkback[s])

Date: Mon, 15 Jan 2001 17:11:05 -0700
From: Caldera Support Info sup-info@LOCUTUS4.CALDERASYSTEMS.COM
Subject: Caldera Systems Security Advisory

                   Caldera Systems, Inc.  Security Advisory

Subject:                temp file problems in inn
Advisory number:        CSSA-2001-001.0
Issue date:             2001 January, 11
Cross reference:

1. Problem Description

INN uses a temporary directory for several operations. Those operations use it in a unsecure manner, which would allow an attacker to gain access to the 'news' user. Since INN is not supposed to work in a public temporary directory, please use the described workaround to change the temp directory to a news private one.

2. Vulnerable Versions

   System                       Package

   OpenLinux Desktop 2.3        All released inn packages

   OpenLinux eServer 2.3.1      All released inn packages
   and OpenLinux eBuilder

   OpenLinux eDesktop 2.4       All released inn packages
3. Solution


   Edit /etc/news/inn.conf, change the line
        pathtmp:                /var/tmp
   to read
        pathtmp:                /var/run/news

   After this, restart INN by running as root:

        /etc/rc.d/init.d/news stop
        /etc/rc.d/init.d/news start
4. OpenLinux Desktop 2.3

No fixed packages released, see workaround above.

5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0

No fixed packages released, see workaround above.

6. OpenLinux eDesktop 2.4

No fixed packages released, see workaround above.

7. References

This and other Caldera security resources are located at:


This security fix closes Caldera's internal Problem Report 8673.

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.

9. Acknowledgements

Caldera Systems, Inc. wishes to thank the Team at Immunix, Greg KH at Wirex and Solar Designer for drawing our attention, and their cooperation.