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______________________________________________________________________________

      SCO Security Advisory

Subject:    UnixWare 7.1.4 UnixWare 7.1.3 UnixWare 7.1.1 : x.org possible local socket hijacking
Advisory number:   SCOSA-2005.8
Issue date:     2005 January 26
Cross reference:  sr891412 fz530161 erg712694 CAN-2005-0134
______________________________________________________________________________


1. Problem Description

  The socket directories created in /tmp are now required to
  be owned by root and have their sticky-bit set. If the
  permission is not set properly, the component will try to
  set it properly. If it is unable to do that, it will generate 
  error/warning message(s), but the component will not fail.
  (a.k.a. fail softly)

  The owner and permissions of these directories are tried 
  to be set correctly even if X servers are started by regular 
  users; it generates error message if it fails in doing so. 

  The Common Vulnerabilities and Exposures project (cve.mitre.org) 
  has assigned the name CAN-2005-0134 to this issue.


2. Vulnerable Supported Versions

  System        Binaries
  ----------------------------------------------------------------------
  UnixWare 7.1.4       /usr/X/bin/Xnest
          /usr/X/bin/Xsco
          /usr/X/bin/Xvfb
          /usr/X/bin/xfs
          /usr/X/lib/libICE.a
          /usr/X/lib/libICE.so.6.0
          /usr/src/ihvkit/display/Xserver/lib/libos.a
          /usr/src/ihvkit/display/usrlib/libfont.a

  UnixWare 7.1.3       /usr/X/bin/Xnest
          /usr/X/bin/Xsco
          /usr/X/bin/Xvfb
          /usr/X/bin/xfs
          /usr/X/lib/libICE.a
          /usr/X/lib/libICE.so.6.0
          /usr/src/ihvkit/display/Xserver/lib/libos.a
          /usr/src/ihvkit/display/usrlib/libfont.a

  UnixWare 7.1.1       /usr/X/bin/Xnest
          /usr/X/bin/Xsco
          /usr/X/bin/Xvfb
          /usr/X/bin/xfs
          /usr/X/lib/libICE.a
          /usr/X/lib/libICE.so.6.0
          /usr/src/ihvkit/display/Xserver/lib/libos.a
          /usr/src/ihvkit/display/usrlib/libfont.a


3. Solution

  The proper solution is to install the latest packages.


4. UnixWare 7.1.4

  4.1 Location of Fixed Binaries

  ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.8

  4.2 Verification

  MD5 (erg712694.pkg.Z) = f216b86a37d02bc0630a849863023637

  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 erg712694.pkg.Z to the /var/spool/pkg directory

  # uncompress /var/spool/pkg/erg712694.pkg.Z
  # pkgadd -d /var/spool/pkg/erg712694.pkg


5. UnixWare 7.1.3

  5.1 Location of Fixed Binaries

  ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.8

  5.2 Verification

  MD5 (erg712694.713.pkg.Z) = cdd347f43fb4cbcec2ef693d88ec104b

  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 erg712694.713.pkg.Z to the /var/spool/pkg directory

  # uncompress /var/spool/pkg/erg712694.713.pkg.Z
  # pkgadd -d /var/spool/pkg/erg712694.713.pkg


6. UnixWare 7.1.1

  6.1 Location of Fixed Binaries

  ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.8


  6.2 Verification

  MD5 (erg712694.711.pkg.Z) = 8c59f293edd8520ed1fefc0abe465592

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


  6.3 Installing Fixed Binaries

  Upgrade the affected binaries with the following sequence:

  Download erg712694.711.pkg.Z to the /var/spool/pkg directory

  # uncompress /var/spool/pkg/erg712694.711.pkg.Z
  # pkgadd -d /var/spool/pkg/erg712694.711.pkg


7. References

  Specific references for this advisory:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0134 
    http://x.org/X11R6.8.1/RELNOTES.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 sr891412 fz530161
  erg712694.


8. 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.


9. Acknowledgments

  SCO would like to thank Jim Gettys and The Open X.org
  foundation

______________________________________________________________________________

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