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Shadow-Utils 'useradd' Local Insecure Permissions Vulnerability

References:

• ASA-2007-249 - shadow-utils security and bug fix update (Avaya)
  
• CVS log for shadow/src/useradd.c (shadow)
  
• useradd patch (shadow)
  
• ASA-2007-326 shadow-utils security and bug fix update (RHSA-2007-0431) (Avaya)
  
• RHSA-2007:0276 shadow-utils security and bug fix update (Red Hat)
  
• RHSA-2007:0431-4 shadow-utils security and bug fix update (Red Hat)
  
• Vulnerability Note VU#312692 Shadow Utils useradd utility sets incorrect file pe (US-CERT)