[Full-Disclosure] Security Update: [CSSA-2003-006.0] Linux: CVS double free vulnerability

From: security@caldera.com
Date: 01/31/03

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From: security@caldera.com
Date: Fri, 31 Jan 2003 11:15:44 -0800

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    ______________________________________________________________________________

                            SCO Security Advisory

    Subject: Linux: CVS double free vulnerability
    Advisory number: CSSA-2003-006.0
    Issue date: 2003 January 31
    Cross reference:
    ______________________________________________________________________________

    1. Problem Description

            Double-free vulnerabiity in CVS allows remote attackers to cause
            a denial of service and possibly execute arbitrary code via a
            malformed Directory request.

    2. Vulnerable Supported Versions

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

            OpenLinux 3.1.1 Server prior to cvs-1.11-9.i386.rpm
                                            prior to cvs-doc-ps-1.11-9.i386.rpm

            OpenLinux 3.1.1 Workstation prior to cvs-1.11-9.i386.rpm
                                            prior to cvs-doc-ps-1.11-9.i386.rpm

            OpenLinux 3.1 Server prior to cvs-1.11-9.i386.rpm
                                            prior to cvs-doc-ps-1.11-9.i386.rpm

            OpenLinux 3.1 Workstation prior to cvs-1.11-9.i386.rpm
                                            prior to cvs-doc-ps-1.11-9.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-2003-006.0/RPMS

            4.2 Packages

            e7a31e41a320f2397d23611600675d6e cvs-1.11-9.i386.rpm
            676963b0422d0cd95397de77a3b927d1 cvs-doc-ps-1.11-9.i386.rpm

            4.3 Installation

            rpm -Fvh cvs-1.11-9.i386.rpm
            rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm

            4.4 Source Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2003-006.0/SRPMS

            4.5 Source Packages

            da4062b0b49efcabb47c7efb41dc5471 cvs-1.11-9.src.rpm

    5. OpenLinux 3.1.1 Workstation

            5.1 Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-006.0/RPMS

            5.2 Packages

            73dee39f6543079466e6d7adbac35ec6 cvs-1.11-9.i386.rpm
            129403e58ca353878b09fbbbaaccf645 cvs-doc-ps-1.11-9.i386.rpm

            5.3 Installation

            rpm -Fvh cvs-1.11-9.i386.rpm
            rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm

            5.4 Source Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2003-006.0/SRPMS

            5.5 Source Packages

            9030ced613dc9919f78a3200ea931fdc cvs-1.11-9.src.rpm

    6. OpenLinux 3.1 Server

            6.1 Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-006.0/RPMS

            6.2 Packages

            3b3748a8bca4a972c422f43ff7745337 cvs-1.11-9.i386.rpm
            04760b87b35c2a0f72cc41ed9565b47d cvs-doc-ps-1.11-9.i386.rpm

            6.3 Installation

            rpm -Fvh cvs-1.11-9.i386.rpm
            rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm

            6.4 Source Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Server/CSSA-2003-006.0/SRPMS

            6.5 Source Packages

            6d87ab953cd4864fe319085b3d2517db cvs-1.11-9.src.rpm

    7. OpenLinux 3.1 Workstation

            7.1 Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-006.0/RPMS

            7.2 Packages

            0aa2347beb3bf9e5219dfce2eedb26d8 cvs-1.11-9.i386.rpm
            a646b53a8436c880b4752566223e7156 cvs-doc-ps-1.11-9.i386.rpm

            7.3 Installation

            rpm -Fvh cvs-1.11-9.i386.rpm
            rpm -Fvh cvs-doc-ps-1.11-9.i386.rpm

            7.4 Source Package Location

            ftp://ftp.sco.com/pub/updates/OpenLinux/3.1/Workstation/CSSA-2003-006.0/SRPMS

            7.5 Source Packages

            6e2cf8a3b250a1373846f4d35ea958ad cvs-1.11-9.src.rpm

    8. References

            Specific references for this advisory:

                    http://security.e-matters.de/advisories/012003.html
                    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0015

            SCO security resources:

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

            This security fix closes SCO incidents sr873732, fz527185,
            erg712206.

    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

            Stefan Esser <s.esser@e-matters.de> discovered and researched
            these vulnerabilities.

    ______________________________________________________________________________

    _______________________________________________
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