[Full-Disclosure] UPDATED UnixWare 7.1.1 : Bind: cache poisoning BIND 8 prior to 8.3.7 and BIND 8.4.x prior 8.4.2

[security@sco.com]

To: announce@lists.caldera.com bugtraq@securityfocus.com 
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                        SCO Security Advisory

Subject:                UnixWare 7.1.1 : Bind: cache poisoning BIND 8 prior to 
8.3.7 and BIND 8.4.x prior 8.4.2
Advisory number:        CSSA-2003-SCO.33.1
Issue date:             2003 December 01
Cross reference:        sr886768 fz528464 erg712479 CAN-2003-0914
______________________________________________________________________________


1. Problem Description

         UPDATED: Maintenance Pack 4 is now prerequisite. Previous releases 
                  required update pack 2.

         UnixWare 7.1.3 is unaffected by this issue because the
         version of bind included in UnixWare 7.1.3 is 9.2.1. 

         Open UNIX is also unaffected by this issue because the version
         of bind in Open UNIX 8.0.0 is 9.1.0. 

         CERT/CC Incident Note VU#734644 

         BIND is an implementation of the Domain Name System (DNS) 
         protocols. Successful exploitation of this vulnerability 
         may result in a temporary denial of service.

         The Common Vulnerabilities and Exposures project (cve.mitre.org)
         has assigned the name CAN-2003-0914 to this issue.


2. Vulnerable Supported Versions

        System                          Binaries
        ----------------------------------------------------------------------
        UnixWare 7.1.1                  /usr/sbin/addr
                                        /usr/sbin/dig
                                        /usr/sbin/dnskeygen
                                        /usr/sbin/dnsquery
                                        /usr/sbin/host
                                        /usr/sbin/in.named
                                        /usr/sbin/irpd
                                        /usr/sbin/mkservdb
                                        /usr/sbin/named-bootconf
                                        /usr/sbin/named-bootconf.pl
                                        /usr/sbin/named-xfer
                                        /usr/sbin/ndc
                                        /usr/sbin/nslookup
                                        /usr/sbin/nsupdate

3. Solution

        The proper solution is to install the latest packages.


4. UnixWare 7.1.1

        4.1 UnixWare 7.1.1 Maintenance Pack 4 is a prerequisite.

        4.2 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.33

        4.3 Verification

        MD5 (erg712479b.Z) = d81ecd04dccda1fc76ee41947c5593d3

        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 sequence:

        1. Download the erg712479b.Z file to the /tmp directory on your machine.

        2. As root, uncompress the file and add the package to your system
           using these commands:

                $ su
                Password: <type your root password>
                # uncompress /tmp/erg712479b.Z
                # pkgadd -d /tmp/erg712479b
                # rm /tmp/erg712479b

        Alternatively, this SLS package may be installed in quiet mode,
        that is, without displaying the release notes and asking for
        confirmation.  To do this, use these commands:

                $ su
                Password: <type your root password>
                # uncompress /tmp/erg712479b.Z
                # pkgadd -qd /tmp/erg712479b all
                # rm /tmp/erg712479b

        3. There is no need to reboot the system after installing this package.


        Removal Instructions
        --------------------

        1. As root, remove the package using these commands:

                $ su
                Password: <type your root password>
                # pkgrm erg712479

        2. There is no need to reboot the system after removing this package


5. References

        Specific references for this advisory:
                http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0914

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

        This security fix closes SCO incidents sr886768 fz528464
        erg712479.


6. 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.
______________________________________________________________________________

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