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Merge pull request #1187 from ronald-cron-arm/issue-1185

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Add security change log for issue 1185
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Ronald Cron 2024-03-11 18:04:47 +01:00 committed by GitHub
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ChangeLog.d/tls13-only-server.txt Normal file
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Security
* When negotiating TLS version on server side, do not fall back to the
TLS 1.2 implementation of the protocol if it is disabled.
- If the TLS 1.2 implementation was disabled at build time, a TLS 1.2
client could put the TLS 1.3-only server in an infinite loop processing
a TLS 1.2 ClientHello, resulting in a denial of service. Reported by
Matthias Mucha and Thomas Blattmann, SICK AG.
- If the TLS 1.2 implementation was disabled at runtime, a TLS 1.2 client
was able to successfully establish a TLS 1.2 connection with the server.
Reported by alluettiv on GitHub.