From acz@hert.org Wed Jan 27 13:20:05 1999
From: "Anthony C . Zboralski" <acz@hert.org>
To: alert@hert.org
Date: Wed, 27 Jan 1999 16:53:51 +0100
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

Permission is granted to reproduce and distribute HERT advisories in their
entirety, provided the HERT PGP signature is included and provided the alert is used for noncommercial purposes and with the intent of increasing the aware-
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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