Date: Wed, 27 Jan 1999 16:53:51 +0100
From: Anthony C . Zboralski <acz@hert.org>
To: alert@hert.org
Subject: [HERT] Advisory #001 Buffer overflow in Solaris /usr/bin/lpstat

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  HERT - Hacker Emergency Response Team
  alert@hert.org - http://www.hert.org

  Advisory:        #00001
  Title:           lpstat
  Date:            26 January 1999 
  Summary:         Buffer overflow in Solaris /usr/bin/lpstat
  System affected: Solaris 2.6, 2.6_x86, 2.7, 2.7_x86
  IMPACT:          Local users may obtain root priviledge.
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Copyright (C) 1999 Hacker Emergency Response Team

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ness of the Internet community.

This advisory is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

1. Background:
   
   The lpstat command prints information about the current
   status of the LP print service.
   
   On Solaris 2.6 and 2.7, /usr/bin/lpstat is suid root and we've found it
   to be vulnerable to a buffer overflow.
   
   Exploit code for this vulnerability is in circulation.


2. Affected Supported versions
   
   Solaris versions:   2.7, 2.7_x86, 2.6, 2.6_x86

3. Recommendations
   
   Temporary fix:
   
   chmod -s /usr/bin/lpstat
   chmod -s /usr/bin/lpq
   
   Wait for Sun to issue a patch that will correct this problem.


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