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https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2930

           Summary: GIF picture within HTTP stream dissected as malformed
                    PNG image
           Product: Wireshark
           Version: SVN
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: toralf.foerster@xxxxxx


Created an attachment (id=2296)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=2296)
http stream 

Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
Attached is a sniffed stream where packet 88 and 92 resepctively contains an
image which is dissected as PNG b/c the HTTP headers indicates this. However
the "PNG Signature" is "Gif89a" and the packet is marked as malformed.
Even if there's an error from the web site - should the dissector try to
heuristic detect a GIF image in such cases instead to mark such packets as
"malformed" ?


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