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OpenLinux: mpg123 remote denial of service and heap-based buffer overflow



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                        SCO Security Advisory

Subject:                OpenLinux: mpg123 remote denial of service and 
heap-based buffer overflow
Advisory number:        CSSA-2004-002.0
Issue date:             2004 February 19
Cross reference:        sr882700 fz528149 erg712383 CAN-2003-0577 CAN-2003-0865
______________________________________________________________________________


1. Problem Description

        mpg123 0.59r allows remote attackers to cause a denial of
        service and possibly execute arbitrary code via an MP3 file
        with a zero bitrate, which creates a negative frame size. 

        The Common Vulnerabilities and Exposures project (cve.mitre.org)
        has assigned the name CAN-2003-0577 to this issue. 

        Heap-based buffer overflow in readstring of httpget.c for mpg123 
        0.59r and 0.59s allows remote attackers to execute arbitrary code 
        via a long request. 

        The Common Vulnerabilities and Exposures project (cve.mitre.org) 
        has assigned the name CAN-2003-0865 to this issue.


2. Vulnerable Supported Versions

        System                          Package
        ----------------------------------------------------------------------
        OpenLinux 3.1.1 Server          prior to mpg123-0.59r-7MR.i386.rpm
        OpenLinux 3.1.1 Workstation     prior to mpg123-0.59r-7MR.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-2004-002.0/RPMS

        4.2 Packages

        cb8a81f231da3c943dfaa366df68045a        mpg123-0.59r-7MR.i386.rpm

        4.3 Installation

        rpm -Fvh mpg123-0.59r-7MR.i386.rpm

        4.4 Source Package Location

        
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2004-002.0/SRPMS

        4.5 Source Packages

        810ef880b6ad68ea7aea631241552dad        mpg123-0.59r-7MR.src.rpm


5. OpenLinux 3.1.1 Workstation

        5.1 Package Location

        
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2004-002.0/RPMS

        5.2 Packages

        13165b654404e73fe934cc13347c81b3        mpg123-0.59r-7MR.i386.rpm

        5.3 Installation

        rpm -Fvh mpg123-0.59r-7MR.i386.rpm

        5.4 Source Package Location

        
ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Workstation/CSSA-2004-002.0/SRPMS

        5.5 Source Packages

        98203970951e6c87d715170324a8ca2c        mpg123-0.59r-7MR.src.rpm


6. References

        Specific references for this advisory:
                http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0577
                http://www.securityfocus.com/archive/1/306903
                http://www.securityfocus.com/bid/6629
                http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0865
                http://www.securityfocus.com/archive/1/338641
                http://marc.theaimsgroup.com/?l=bugtraq&m=106493686331198&w=2
                http://www.securityfocus.com/bid/8680

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

        This security fix closes SCO incidents sr882700 fz528149
        erg712383.


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. Acknowledgements

        SCO would like to thank 3APA3A and Vade79.
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