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TUCoPS :: Web :: Servers :: bt704.txt

Novell Enterprise Web Server PERL Buffer Overflow





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For Immediate Disclosure

============================== Summary ==============================

 Security Alert: NOVL-2003-2966549
          Title: Enterprise Web Server PERL Handler Buffer Overflow
           Date: 23-Jul-2003
       Revision: Original
   Product Name: Netware Enterprise Web Server
 OS/Platform(s): Netware 5.1, 6.0
  Reference URL: http://support.novell.com/servlet/tidfinder/2966549 
    Vendor Name: Novell, Inc. 
     Vendor URL: http://www.novell.com 
Security Alerts: http://support.novell.com/security-alerts 
        Affects: cgi2perl.nlm
    Identifiers: CERT VU# 185593, CVE: CAN-2003-0562
        Credits: Uffe Nielsen

============================ Description ============================

A Buffer Overflow in the PERL handler, (/perl/) may result in a 
server ABEND.  The problem is not in the Netscape-based Enterprise
Web Server, but in the Novell-supplied cgi2perl.nlm handler to PERL.

============================== Impact ===============================

One or more server ABENDs may be triggered by buffer overflows, 
resulting in degraded performance or crash of the server, in turn 
causing in a denial of service to legitimate users of the system.
There is no known ROOT shell exploit from this kind of failure on 
Netware.

======================== Recommended Actions ========================

See detailed instructions in the referenced Technical Information 
Document (TID) http://support.novell.com/servlet/tidfinder/2966549.

============================ DISCLAIMER =============================

The content of this document is believed to be accurate at the time 
of publishing based on currently available information. However, the 
information is provided "AS IS" without any warranty or 
representation. Your use of the document constitutes acceptance of 
this disclaimer. Novell disclaims all warranties, express or implied,
regarding this document, including the warranties of merchantability 
and fitness for a particular purpose. Novell is not liable for any 
direct, indirect, or consequential loss or damage arising from use 
of, or reliance on, this document or any security alert, even if 
Novell has been advised of the possibility of such damages and even 
if such damages are foreseeable.

============================ Appendices =============================

None

================ Contacting Novell Security Alerts ==================

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email to
            secure@novell.com 

or use the web form at our website

            http://support.novell.com/security-alerts 

PGP users may send signed/encrypted information to us using our PGP 
key, available from the pgpkeys.mit.edu server, or our website.

Users wishing to be notified when Novell Security Alerts are issued 
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Security Alerts, Novell, Inc. PGP Key Fingerprint:

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========================= Revision History ==========================
       Original: 23-Jul-2003 - Original Publication

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