https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14727
Bug ID: 14727
Summary: The recent change for DMG Capabilities dissection
breaks dissection of many existing captures
Product: Wireshark
Version: Git
Hardware: x86
OS: Windows 10
Status: UNCONFIRMED
Severity: Major
Priority: Low
Component: Dissection engine (libwireshark)
Assignee: bugzilla-ad...@wireshark.org
Reporter: realrichardsha...@gmail.com
Target Milestone: ---
Build Information:
Latest master on RHEL 4.7
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With the recent change to the dissection of DMG Capabilities, captures I have
now refuse to dissect what was dissected before and show a Malformed Tag
exception and drop the whole IE.
A better approach would be to flag the frame as incorrect according to
802.11-2012 but dissect as much as possible.
It seems that between 802.11AD and 802.11-2016 an additional 5 bytes were added
to the DMB Capabilities.
One approach to handling this would be to dissect as if the 17-byte version was
in effect so that users can get as much info as possible.
I will upload a frame showing the issue and a patch.
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