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      SCO Security Advisory

Subject:    UnixWare 7.1.4 : GhostScript Insecure Temporary File Creation Vulnerability
Advisory number:   SCOSA-2006.23
Issue date:     2006 May 09
Cross reference:  fz533156
      CVE-2004-0967
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1. Problem Description

  Ghostscript is affected by an insecure temporary file creation
  vulnerability.  This issue is likely due to a design error
  that causes the application to fail to verify the existence
  of a file before writing to it.
  
  An attacker may leverage this issue to overwrite arbitrary
  files with the privileges of an unsuspecting user that
  activates the vulnerable application.  Reportedly this issue
  is unlikely to facilitate privilege escalation.
  
  The Common Vulnerabilities and Exposures project
  (cve.mitre.org) has assigned the name CVE-2004-0967 to
  this issue.


2. Vulnerable Supported Versions

  System        Binaries
  ----------------------------------------------------------------------
  UnixWare 7.1.4      Ghostscript package


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-2006.23


  4.2 Verification

  MD5 (p533156.714.image) = 64ad569588eff4ac2c8a3a1e07151847

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


  4.3 Installing Fixed Binaries

  The following packages should be installed on your system before
  you install this fix:

    UnixWare 7.1.4 Maintenance Pack 3
    https://www.sco.com/support/update/download/release.php?rid=126

    ptf9052
    https://www.sco.com/support/update/download/release.php?rid=160

  Upgrade the affected binaries with the following sequence:

  Download p533156.714.image to the /var/spool/pkg directory

  # pkgadd -d /var/spool/pkg/p533156.714.image


5. References

  Specific references for this advisory:
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0967
    https://www.securityfocus.com/bid/11285 
    https://secunia.com/advisories/12903/ 
    https://secunia.com/advisories/17135 
    https://www.cs.wisc.edu/~ghost/

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

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

  This security fix closes SCO incidents fz533156.


6. 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.


7. Acknowledgments

  Trustix security engineers are credited with the discovery of
  this vulnerability.

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