Pragma Systems Information for VU#389665

Multiple vendors' SSH transport layer protocol implementations contain vulnerabilities in key exchange and initialization



Vendor Statement

December 16, 2002

Rapid 7 and CERT Coordination Center Vulnerability report VU#389665

Pragma Systems Inc. of Austin, Texas, USA, was notified regarding a possible vulnerability with Version 2.0 of Pragma SecureShell. Pragma Systems tested Pragma SecureShell 2.0 and the upcoming new Version 3.0, and found that the attacks did cause a memory access protection fault on Microsoft platforms.

After research, Pragma Systems corrected the problem. The correction of the problem leads us to believe that any attack would not cause a Denial of Service, or the ability of random code to run on the server.

The problem is corrected in Pragma SecureShell Version 3.0. Any customers with concerns regarding this vulnerability report should contact Pragma Systems, Inc at for information on obtaining an upgrade free of charge. Pragma's web site is located at and the company can be reached at 1-512-219-7270.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References



The CERT/CC has no additional comments at this time.

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