https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3986
Summary: some malformed OPC UA traffic causes wireshark to
"freeze"
Product: Wireshark
Version: unspecified
Platform: Other
OS/Version: Ubuntu
Status: NEW
Severity: Major
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: vieuxtech@xxxxxxxxx
Created an attachment (id=3614)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=3614)
pcap used to reproduce bug
Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
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Seems some malformed OPC UA traffic causes wireshark to "freeze",
though it recovers after a few minutes.
---------- Forwarded message ----------
Wireshark gets freezed for about two minutes when trying to decode a
malformed packet of OPCUA Service CallRequest.
There are two malformed CallRequest packets in the pcap, in which
the latter one cause the issue.
To reproduce:
1. Load the pcap file
2. Open "Decode as ..." dialog, select Transport source(12001) or
destination(12001) as "opcua", and press OK
3. Wireshark gets freezed at the dialog for about 2 minutes, and then
show the packets as OpcUa.
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