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             AUSCERT External Security Bulletin Redistribution

                  ESB-2004.0028 -- Sun Alert Notification
      Sun ONE Web Server Buffer Overflow Vulnerability May Result in 
                         "Denial of Service" (DoS)
                              13 January 2004

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                Sun ONE/iPlanet Web Server
Publisher:              Sun Microsystems
Operating System:       HP-UX
Impact:                 Denial of Service
Access Required:        Remote

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   DOCUMENT ID: 57464
   SYNOPSIS: Sun ONE Web Server Buffer Overflow Vulnerability May Result
   in "Denial of Service" (DoS)
   DETAIL DESCRIPTION:
   
Sun(sm) Alert Notification

     * Sun Alert ID: 57464
     * Synopsis: Sun ONE Web Server Buffer Overflow Vulnerability May
       Result in "Denial of Service" (DoS)
     * Category: Security
     * Product: Sun ONE/iPlanet Web Server
     * BugIDs: 4823974
     * Avoidance: Upgrade
     * State: Resolved
     * Date Released: 09-Jan-2004
     * Date Closed: 09-Jan-2004
     * Date Modified:
       
1. Impact

   A buffer overflow vulnerability in the Sun ONE Web Server may be
   exploited by an unprivileged remote user to crash the web server,
   which is a type of Denial of Service (DoS) attack.
   
2. Contributing Factors

   This issue can occur in the following releases:
     * Sun ONE/iPlanet Web Server 6.0 Service Pack 5 and earlier
       
   Note: This issue only affects the Sun ONE/iPlanet Web Server on the
   HP-UX platform
   
3. Symptoms

   If this vulnerability is successfully exploited, the webserver will
   crash and dump a core file. The system may log messages similar to the
   following in the "<SERVER_ROOT>/SERVER_INSTANCE/logs/error" file:
    catastrophe (22106): Server crash detected (signal SIGSEGV)                
                    

   SOLUTION SUMMARY:
   
4. Relief/Workaround

   There is no workaround. Please see the "Resolution" section below.
   
5. Resolution

   This issue is addressed in the following release:
     * Sun ONE/iPlanet Web Server 6.0 Service Pack 6 and later
       
   This release/upgrade is available for download at
   [1]http://wwws.sun.com/software/download/products/3f186391.html.
   
   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided by
   third parties. The issues described in this Sun Alert notification may
   or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein. ANY
   AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
   WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
   OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
   This Sun Alert notification contains Sun proprietary and confidential
   information. It is being provided to you pursuant to the provisions of
   your agreement to purchase services from Sun, or, if you do not have
   such an agreement, the Sun.com Terms of Use. This Sun Alert
   notification may only be used for the purposes contemplated by these
   agreements.
   
   Copyright 2000-2004 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved.
   

References

   1. http://wwws.sun.com/software/download/products/3f186391.html

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