| Bug ID |
8069
|
| Summary |
Dissection of IPP Response PDU takes extremely long time
|
| Classification |
Unclassified
|
| Product |
Wireshark
|
| Version |
1.6.7
|
| Hardware |
x86
|
| OS |
Ubuntu
|
| Status |
UNCONFIRMED
|
| Severity |
Minor
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Created attachment 9640 [details]
Packet capture containing problematic PDU
Build Information:
Stock Wireshark build from Kubuntu 12.10
--
When capturing IPP traffic, Wireshark can hang for an extremely long time when
dissecting certain IPP response PDUs. The PDU is not overly large -- around
5000 bytes. But when clicking the IPP Response reassembled PDU in the GUI, the
interface shows a dialog that says "Processing: Packet Details" and then hangs.
CPU usage is 100%. During this hang, the "Time Left" and progress bar do not
update. After a good 10-15 minutes, it finally returns and shows the packet
details.
The PDU in question is quite bizarre, possibly due to something wrong with
CUPS. I imagine it is confusing the dissector somehow.
Packet dump attached. If you filter for "IPP" and then look at the IPP Response
packet you should be able to repro.
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