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                Caldera International, Inc. Security Advisory

Subject: Linux: local off by one in cvsd
Advisory number: CSSA-2002-035.0
Issue date: 2002 August 08
Cross reference:
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1. Problem Description

        There is a locally exploitable vulnerability in the cvsd program.

2. Vulnerable Supported Versions

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

        OpenLinux 3.1.1 Server prior to cvs-1.11-8.i386.rpm
                                        prior to cvs-doc-ps-1.11-8.i386.rpm

        OpenLinux 3.1.1 Workstation prior to cvs-1.11-8.i386.rpm
                                        prior to cvs-doc-ps-1.11-8.i386.rpm

        OpenLinux 3.1 Server prior to cvs-1.11-8.i386.rpm
                                        prior to cvs-doc-ps-1.11-8.i386.rpm

        OpenLinux 3.1 Workstation prior to cvs-1.11-8.i386.rpm
                                        prior to cvs-doc-ps-1.11-8.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-2002-035.0/RPMS

        4.2 Packages

        446921ba85f2f865d698060ab344d189 cvs-1.11-8.i386.rpm
        11ddbffdbf9310b24364b2b91d851acc cvs-doc-ps-1.11-8.i386.rpm

        4.3 Installation

        rpm -Fvh cvs-1.11-8.i386.rpm
        rpm -Fvh cvs-doc-ps-1.11-8.i386.rpm

        4.4 Source Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2002-035.0/SRPMS

        4.5 Source Packages

        0e5b474050456ed691d77fc8ce5825be cvs-1.11-8.src.rpm

5. OpenLinux 3.1.1 Workstation

        5.1 Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2002-035.0/RPMS

        5.2 Packages

        d24451d87b1c7424f12bb41d4873c3df cvs-1.11-8.i386.rpm
        035d93df5ab69f025f7d08a583977658 cvs-doc-ps-1.11-8.i386.rpm

        5.3 Installation

        rpm -Fvh cvs-1.11-8.i386.rpm
        rpm -Fvh cvs-doc-ps-1.11-8.i386.rpm

        5.4 Source Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2002-035.0/SRPMS

        5.5 Source Packages

        ba797e325ccc15beff8506f27ee4436e cvs-1.11-8.src.rpm

6. OpenLinux 3.1 Server

        6.1 Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-035.0/RPMS

        6.2 Packages

        1f3a09e4fcc1a8a0d011a6e7fcd0d810 cvs-1.11-8.i386.rpm
        ff3e5b2acdd60e4b0492b212603a0d23 cvs-doc-ps-1.11-8.i386.rpm

        6.3 Installation

        rpm -Fvh cvs-1.11-8.i386.rpm
        rpm -Fvh cvs-doc-ps-1.11-8.i386.rpm

        6.4 Source Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/CSSA-2002-035.0/SRPMS

        6.5 Source Packages

        c54cf8725ca2d24535e3abe86524fcb8 cvs-1.11-8.src.rpm

7. OpenLinux 3.1 Workstation

        7.1 Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2002-035.0/RPMS

        7.2 Packages

        cf5125e9586da6217df51051f66eb8d6 cvs-1.11-8.i386.rpm
        4bce0b96a28195c75878515b6a37777d cvs-doc-ps-1.11-8.i386.rpm

        7.3 Installation

        rpm -Fvh cvs-1.11-8.i386.rpm
        rpm -Fvh cvs-doc-ps-1.11-8.i386.rpm

        7.4 Source Package Location

        ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2002-035.0/SRPMS

        7.5 Source Packages

        05f22c4bfcb98b826fcbb85e1d81f637 cvs-1.11-8.src.rpm

8. References

        Specific references for this advisory:
                http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0081.html

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

        This security fix closes Caldera incidents sr865452, fz521139,
        erg712068.

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

        David Reign (davidreignhotmail.com) discovered and reported
        this vulnerability. Larry Jones (the maintainer) provided more
        information, and a fix for the issue.

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