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To: bugtraqsecurityfocus.com announcelists.caldera.com security-announce=
lists.securityportal.com

___________________________________________________________________________

            Caldera International, Inc. Security Advisory

Subject: OpenServer: BIND buffer overflows
Advisory number: CSSA-2001-SCO.13
Issue date: 2001 August 20
Cross reference:
___________________________________________________________________________

1. Problem Description
=09
        The BIND subsystem contains several buffer overflows, detailed
        in CERT advisory CA-2001-02. This advisory announces the
        availability of a preliminary version of BIND 8.2.5. Since
        there is no packaged installation of this preliminary
        offering, it should only be installed by experienced system
        administrators. A formal installable fix containing this
        version of BIND is forthcoming.

2. Vulnerable Versions

        Operating System Version Affected Files
        ------------------------------------------------------------------
        OpenServer <=3D 5.0.6a ./etc/addr
                                                ./etc/nsupdate
                                                ./etc/dig
                                                ./etc/dnsquery
                                                ./etc/host
                                                ./etc/named
                                                ./etc/named-xfer
                                                ./etc/ndc
                                                ./usr/lib/libresolv.so.1
                                                ./usr/lib/libsocket.so.2
                                                ./usr/lib/libresolv.a
                                                ./usr/lib/libsocket.a
                                                ./usr/lib/libp/libresolv.so.1
                                                ./usr/lib/libp/libsocket.a
                                                ./usr/lib/libp/libsocket.so.2
                                                ./usr/lib/libp/libresolv.a
                                                ./usr/bin/nslookup
                                                ./usr/include/resolv.h

3. Workaround

        None.

4. OpenServer

  4.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/security/openserver/sr379322/

  4.2 Verification

        md5 checksums:

        84e3a058fb2af36235e99831fb44d200 newbind.tar.Z

        md5 is available for download from

                ftp://ftp.sco.com/pub/security/tools/

  4.3 Installing Fixed Binaries

        Upgrade the affected binaries with the following commands:

        # uncompress /tmp/newbind.tar.Z
        # mkdir /tmp/newbind
        # cd /tmp/newbind
        # tar xvf /tmp/newbind.tar

        Replace each of the associated binaries with the one from this
        directory (after saving them somewhere else).

5. References

        http://www.cert.org/advisories/CA-2001-02.html

6. Disclaimer

        Caldera International, Inc. is not responsible for the misuse
        of any of the information we provide on our website and/or
        through our security advisories. Our advisories are a service
        to our customers intended to promote secure installation and
        use of Caldera International products.
        =20
___________________________________________________________________________

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