Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

                   ESB-2004.0528 -- ISS Protection Brief
                  Netscape NSS Library Remote Compromise
                              24 August 2004


        AusCERT Security Bulletin Summary

Product:                Netscape Network Security Services (NSS) SSL library
                        Sun One/iPlanet
                        Netscape Enterprise Server
                        Netscape Personalization Engine
                        Netscape Directory Server
                        Netscape Certificate Management Server
Publisher:              ISS
Operating System:       Solaris
                        Linux variants
                        Mac OS X
Impact:                 Execute Arbitrary Code/Commands
Access:                 Remote/Unauthenticated

Comment: Note that the link in the body of this ISS advisory is incorrect.
         The correct link is http://xforce.iss.net/xforce/alerts/id/180

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Internet Security Systems Protection Brief
August 23, 2004

Protection for Netscape NSS Library Remote Compromise


A vulnerability exists in the Netscape Network Security Services (NSS) library suite which may result in remote compromise of products making use of this library for Secure Sockets Layer (SSL) communication. Netscape Enterprise Server and Sun One are widely used commercial web server platforms which make use of the NSS library. There is a security flaw in the NSS library that can result in arbitrary code execution on vulnerable systems during SSLv2 connection negotiation. 

Business Impact:

If the SSLv2 protocol is enabled on vulnerable servers, a remote unauthenticated attacker may trigger a buffer overflow condition and execute arbitrary code. This has the potential to result in complete compromise of the target server, and exposure of any information held therein. In addition, SSL is often used to secure sensitive or valuable communications, making this a high-value target for attackers.

ISS Protection Strategy:

ISS has provided preemptive protection for these vulnerabilities.  We recommend that all customers apply applicable ISS product updates. 

These updates are now available from the ISS Download Center at:

For the complete X-Force Protection Advisory, please visit:

Version: 2.6.2


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