Security Update: [CSSA-2001-SCO.6] UnixWare: statd buffer overflow

[sco-security () caldera com]

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            Caldera International, Inc. Security Advisory

Subject:                UnixWare: statd buffer overflow
Advisory number:        CSSA-2001-SCO.6
Issue date:             2001 July 2
Cross reference:
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1. Problem Description
        
        The nfs daemon /usr/lib/nfs/statd (otherwise known as
        rpc.statd) was subject to a buffer overflow problem with the
        SM_MON request that could be used by a malicious user to gain
        unauthorized access to a system.


2. Vulnerable Versions

        Operating System        Version         Affected Files
        ------------------------------------------------------------------
        UnixWare 7              All             /usr/lib/nfs/statd


3. Workaround

        None.


4. UnixWare 7

  4.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/security/unixware/sr848098/


  4.2 Verification

        md5 checksums:
        
        1e09711ec683f5f4e1626ef9d7131bd8        erg711747a.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/erg711747a.Z
        # pkgadd -d /tmp/erg711747a


5. References

        http://www.calderasystems.com/support/security/index.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.


7.Acknowledgements

        Caldera International wishes to thank Olaf Kirch
        (okir () caldera de) for reporting the problem.
         
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