Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 12838] New: TCP: Next sequence number off by one when sending payload in SYN p

Wireshark-bugs: [Wireshark-bugs] [Bug 12838] New: TCP: Next sequence number off by one when send

Date: Thu, 08 Sep 2016 14:16:33 +0000

Bug ID	12838
Summary	TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
Product	Wireshark
Version	Git
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	Minor
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	[email protected]
Reporter	[email protected]

Created attachment 14891 [details]
TCP TFO capture

Build Information:
-
--
When using TCP FastOpen the SYN packet contains TCP payload. The next sequence
number ignores the SYN flag. Therefore it is off by one.

This bug is a placeholder for the sample capture.
I will push a fix.

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- [Wireshark-bugs] [Bug 12838] TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
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- [Wireshark-bugs] [Bug 12838] TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
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- [Wireshark-bugs] [Bug 12838] TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
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- [Wireshark-bugs] [Bug 12838] TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
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- [Wireshark-bugs] [Bug 12838] TCP: Next sequence number off by one when sending payload in SYN packet (e.g. TFO)
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