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Description of problem:
If the connection uses TLSv1.2 the Wireshark GUI can't decode the TLS Handshake Protocol Server Key Exchange messages in ECDHE or DHE key exchange, it can do that only if the connection uses TLSv1.0.
Decoding of Server Key Exchange using the CLI tshark command always fails.
Version-Release number of selected component (if applicable):
wireshark-1.8.10-17.el6.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Open wireshark load tlsv1.2-ecdhe-rsa.pcapng
1. tshark -o 'ssl.desegment_ssl_records:TRUE' -d tcp.port==4433,ssl -r /tmp/ -V tlsv1.0-dhe-rsa.pcapng | grep -A 6 'Server Key Exchange'
Actual results:
Handshake Protocol: Server Key Exchange
Handshake Type: Server Key Exchange (12)
Length: 199
Expected results:
Handshake Protocol: Server Key Exchange
Handshake Type: Server Key Exchange (12)
Length: 199
EC Diffie-Hellman Server Params
curve_type: named_curve (0x03)
named_curve: secp256r1 (0x0017)
Pubkey Length: 65
pubkey:f00ba2...
etc.
Additional info:
See bug 1222600 for example packet captures
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2017-0631.html
Description of problem: If the connection uses TLSv1.2 the Wireshark GUI can't decode the TLS Handshake Protocol Server Key Exchange messages in ECDHE or DHE key exchange, it can do that only if the connection uses TLSv1.0. Decoding of Server Key Exchange using the CLI tshark command always fails. Version-Release number of selected component (if applicable): wireshark-1.8.10-17.el6.x86_64 How reproducible: Always Steps to Reproduce: 1. Open wireshark load tlsv1.2-ecdhe-rsa.pcapng 1. tshark -o 'ssl.desegment_ssl_records:TRUE' -d tcp.port==4433,ssl -r /tmp/ -V tlsv1.0-dhe-rsa.pcapng | grep -A 6 'Server Key Exchange' Actual results: Handshake Protocol: Server Key Exchange Handshake Type: Server Key Exchange (12) Length: 199 Expected results: Handshake Protocol: Server Key Exchange Handshake Type: Server Key Exchange (12) Length: 199 EC Diffie-Hellman Server Params curve_type: named_curve (0x03) named_curve: secp256r1 (0x0017) Pubkey Length: 65 pubkey:f00ba2... etc. Additional info: See bug 1222600 for example packet captures