zenon Process Gateway ICCP (TASE.2) stops working during association with particular ICCP test client.

zenon Process Gateway ICCP (TASE.2) stops working during association with particular ICCP test client.

Summary

Issue during try to associate with Iron IEC 60870-6 ICCP/Tase2 Test Tool from Triangle MicroWorks: zenon Process Gateway stops working. It happens after the Test Tool (remote ICCP client) sends frame with malformed ASN.1 stream.

Description

Issue during try to associate with Iron IEC 60870-6 ICCP/Tase2 Test Tool from Triangle MicroWorks: zenon Process Gateway stops working. It happens after the Test Tool (remote ICCP client) sends frame with malformed ASN.1 stream.

Solution

Issue solved by introducing additional verification for received malformed ASN.1 steam and by improvement in list iterations. Anyway, as this Test Tool is sending in ASN.1 stream a Tag(0) instead a Bitstring – to successfully associate is not possible. 

Issue Number: 33293
Fixed on Date: 10.12.2014
Versions: 7.11 0 BUILD 17075