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OpenServer 5.0.6 OpenServer 5.0.7 : MMDF Various buffer overflows and other security issues
From: please_reply_to_security () sco com
Date: Mon, 19 Jul 2004 15:37:47 -0700 (PDT)


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______________________________________________________________________________

                        SCO Security Advisory

Subject:                OpenServer 5.0.6 OpenServer 5.0.7 : MMDF Various buffer overflows and other security issues
Advisory number:        SCOSA-2004.7
Issue date:             2004 July 14
Cross reference:        sr884728 fz528322 erg712434 CAN-2004-0510 CAN-2004-0511 CAN-2004-0512
______________________________________________________________________________


1. Problem Description

        Deprotect discovered a buffer overflow in execmail.  After reviewing 
        our code we determined the whole MMDF package needed a security audit.

        Various buffer overflows and other security issues that affect all 
        MMDF binaries have been corrected. 

        All but one of the MMDF binaries that were setuid root are no 
        longer setuid. 

        Additional changes in this version of MMDF are documented at
        ftp://ftp.sco.com/pub/openserver5/507/mp/mp3/osr507mp3.html#rn507mp_mmdf
        and in the updated man pages which are included in SCOSA-2004.7

        The Common Vulnerabilities and Exposures project (cve.mitre.org)
        has assigned MMDF buffer overflows the name CAN-2004-0510.

        The Common Vulnerabilities and Exposures project (cve.mitre.org)
        has assigned MMDF null dereferences the name CAN-2004-0511.

        The Common Vulnerabilities and Exposures project (cve.mitre.org)
        has assigned MMDF core dumps the name CAN-2004-0512.

2. Vulnerable Supported Versions

        System                  Binaries
        ----------------------------------------------------------------------
        OpenServer 5.0.6        MMDF Distribution
        OpenServer 5.0.7        MMDF Distribution

3. Solution

        The proper solution is to install the latest packages.

4. OpenServer 5.0.7

        4.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2004.7

        The fixes are also available in SCO OpenServer Release 5.0.7 
        Maintenance Pack 3 or later.  See
        http://www.sco.com/support/update/download/osr507list.html.

5. OpenServer 5.0.6   

        5.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2004.7

        5.2 Verification

        MD5 (VOL.000.000) = 7d079342022ff408e479184fab3ee86b

        md5 is available for download from
                ftp://ftp.sco.com/pub/security/tools

        5.3 Installing Fixed Binaries

        Upgrade the affected binaries with the following sequence:

        1) Download the VOL* files to a directory

        2) Run the custom command, specify an install from media
        images, and specify the download directory as the location of
        the images.


6. References

        Specific references for this advisory:
                http://www.deprotect.com/advisories/DEPROTECT-20040206.txt

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

        SCO security advisories via email
                http://www.sco.com/support/forums/security.html

        This security fix closes SCO incidents sr884728 fz528322
        erg712434.


7. 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.


8. Acknowledgments

        SCO would like to thank Deprotect which describes itself 
        as "a Swedish based security company divided into four 
        divisions; Managed Security Services, Security Services, 
        Products and Development and our Security Academy."

______________________________________________________________________________

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