CSMAP and smap/smapd BUFFER OVERFLOW VULNERABILITY

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             AUSCERT External Security Bulletin Redistribution

                   ESB-2001.381 -- NAI Security Advisory
            CSMAP and smap/smapd BUFFER OVERFLOW VULNERABILITY
                             6 September 2001

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        AusCERT Security Bulletin Summary
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Product:                Gauntlet for Unix version 5.x and 6.0
                        PGP e-ppliance 300 series versions 1.0, 1.5, 2.0
                        PGP e-ppliance 1000 series versions 1.5, 2.0
                        McAfee e-ppliance 100 and 120 series
                        McAfee WebShield for Solaris v4.1
Impact:                 Execute Arbitrary Code/Commands
Access Required:        Remote

Ref:  http://www.pgp.com/support/product-advisories/csmap.asp

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CSMAP and smap/smapd BUFFER OVERFLOW VULNERABILITY ADVISORY

Title:  Gauntlet Firewall for Unix and WebShield CSMAP and smap/smapd
        Buffer Overflow Vulnerability Advisory
Date:   September 4, 2001
Author: Gauntlet Firewall Engineering 


Background: 

A security vulnerability has been discovered in smap/smapd on the
following products: 
 Gauntlet for Unix versions 5.x 
 PGP e-ppliance 300 series version 1.0 
 McAfee e-ppliance 100 and 120 series 

A security vulnerability has been discovered in CSMAP on the following
products: 
 Gauntlet for Unix version 6.0 
 PGP e-ppliance 300 series versions 1.5, 2.0 
 PGP e-ppliance 1000 series versions 1.5, 2.0 
 McAfee WebShield for Solaris v4.1 

This security vulnerability is a Buffer Overflow in the smap/smapd
and CSMAP daemons. The smap/smapd and CSMAP daemons are responsible
for handling e-mail transactions for both inbound and outbound
e-mail. It is possible to exploit this Buffer Overflow vulnerability
to execute arbitrary shell commands with the same privileges as
the owner of the corresponding daemon.


Solution: 

A patch to repair this vulnerability is available for all products
listed above at ftp://ftp.nai.com/pub/security/ and
http://www.pgp.com/naicommon/download/upgrade/upgrades-patch.asp for
the Gauntlet and PGP e-ppliance products and www.mcafeeb2b.com for the
McAfee e-ppliance and WebShield products. 

This patch is a mandatory patch that includes a new version of the
corresponding daemons and addresses the buffer overflow.  Instructions
for installing the patch are included in the README file contained
within the patch.

NOTE FOR HP-UX GAUNTLET v.5.x USERS:
Gauntlet v.5.x users on HP-UX must have HP-UX patch PHCO_16723 or
later installed for the smap/smapd patch to function properly, as
there is a dependency upon the library contained in that HP patch.
The smap/smapd patch for Gauntlet v.5.x makes a check for the
presence of the latest iteration of this patch (PHCO_23684). If
this patch is not present, it will inform the user that PHCO_16723
or later is required and prompt the user if they want to continue.
Failure to have PHCO_16723 or later will prevent all e-mail traffic
if the smap/smapd patch is installed. PHCO_23684 is available from
the HP support web site. The required library is built into HP-UX
v.11.0, so Gauntlet v.6.0 users on HP-UX do not require an additional
patch.

CREDITS: PGP Security acknowledges one of its partners, Garrison
Technologies, Inc., for notification about this problem. 

(C) 2001, Networks Associates Technology, Inc. All Rights Reserved.

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