UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : mountd remote denial of service

[please_reply_to_security () sco com]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



______________________________________________________________________________

                        SCO Security Advisory

Subject:                UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : mountd remote denial of service
Advisory number:        SCOSA-2005.1
Issue date:             2005 January 11
Cross reference:        sr892156 fz530479 erg712731 CAN-2004-1039
______________________________________________________________________________


1. Problem Description

        mountd is not enabled by default. But when the NFS mountd service
        is run by inetd, if a NFS mount related request is received
        from the remote (or local) host, inetd will repeatedly
        create the mountd process and as a result increasingly
        consume memory. 

        The Common Vulnerabilities and Exposures project (cve.mitre.org) 
        has assigned the name CAN-2004-1039 to this issue.


2. Vulnerable Supported Versions

        System                          Binaries
        ----------------------------------------------------------------------
        UnixWare 7.1.4                  /usr/lib/nfs/tmp/mountd
        UnixWare 7.1.3                  /usr/lib/nfs/tmp/mountd
        UnixWare 7.1.1                  /usr/lib/nfs/mountd

3. Solution

        The proper solution is to install the latest packages.

4. UnixWare 7.1.4 / UnixWare 7.1.3

        4.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.1

        4.2 Verification

        MD5 (erg712731.pkg.Z) = 69067669ac277725e8665ac02f955607

        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:

        Download erg712731.pkg.Z to the /var/spool/pkg directory

        # uncompress /var/spool/pkg/erg712731.pkg.Z
        # pkgadd -d /var/spool/pkg/erg712731.pkg


5. UnixWare 7.1.1

        5.1 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.1


        5.2 Verification

        MD5 (erg712731.711.pkg.Z) = 4f7e3bba1e5381e28bef0894dc1d9ec1

        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:

        Download erg712731.711.pkg.Z to the /var/spool/pkg directory

        # uncompress /var/spool/pkg/erg712731.711.pkg.Z
        # pkgadd -d /var/spool/pkg/erg712731.711.pkg


6. References

        Specific references for this advisory:
                http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1039
                http://www.nilesoft.co.kr/

        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 sr892156 fz530479
        erg712731.


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 Yun Jonglim a security researcher
        of NileSOFT, Ltd (www.nilesoft.co.kr) for reporting this
        issue.

______________________________________________________________________________

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (SCO/UNIX_SVR5)

iD8DBQFB5GoCaqoBO7ipriERAkkJAJ4xVCkfRughdxUAYyXba4+w53f1mgCfZG5h
67uBgt3Pg945OMT262BZYZ0=
=SBR9
-----END PGP SIGNATURE-----
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html