OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading with OpenSSL 3.x

Executing excon test suite with Ruby 3.1 and OpenSSL 3.0, I observe following errors:

  Excon basics (ssl) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[2022-02-23 03:58:50] ERROR OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading
	/usr/share/ruby/openssl/buffering.rb:80:in `sysread'
	/usr/share/ruby/openssl/buffering.rb:80:in `fill_rbuff'
	/usr/share/ruby/openssl/buffering.rb:332:in `eof?'
	/usr/share/gems/gems/webrick-1.7.0/lib/webrick/httpserver.rb:82:in `run'
	/usr/share/gems/gems/webrick-1.7.0/lib/webrick/server.rb:310:in `block in start_thread'

This reminds me issues I had with Puma. There is also more details in ruby/openssl ticket

@geemus

@geemus FYI

@voxik

@voxik Thanks for the heads up. I don't think I've otherwise seen this, but I may just forget. Just let me know if I can help.

OpenSSL 3.0 is not widely available yet. But it is default on Fedora 36+ and CentOS Stream 9

I'm getting what appears to be a very similar error in an SSL-enabled WEBrick server, on every connection attempt:

[2024-12-02 13:45:03] ERROR OpenSSL::SSL::SSLError: SSL session is not started yet
        [...]/ruby/3.2.0/gems/openssl-3.2.0/lib/openssl/buffering.rb:80:in `sysread'
        [...]/ruby/3.2.0/gems/openssl-3.2.0/lib/openssl/buffering.rb:80:in `fill_rbuff'
        [...]/ruby/3.2.0/gems/openssl-3.2.0/lib/openssl/buffering.rb:329:in `eof?'
        [...]/ruby/3.2.0/gems/webrick-1.9.0/lib/webrick/httpserver.rb:82:in `run'
        [...]/ruby/3.2.0/gems/webrick-1.9.0/lib/webrick/server.rb:310:in `block in start_thread'

ldd [...]/ruby/3.2.0/extensions/x86_64-linux/3.2.0/openssl-3.2.0/openssl.so
[...]
        linux-vdso.so.1 (0x00007ffc6e13b000)
        libruby.so.3.2 => /usr/local/lib/rubies/3.2.1/lib/libruby.so.3.2 (0x00007f90cbe7f000)
        libssl.so.3 => /usr/lib/x86_64-linux-gnu/libssl.so.3 (0x00007f90cbdb7000)
        libcrypto.so.3 => /usr/lib/x86_64-linux-gnu/libcrypto.so.3 (0x00007f90cb931000)
[...]

libssl.so.3 is provided by libssl3_3.0.15-1~deb12u1.

Any other info needed to reproduce, please ask.

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`OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading` with OpenSSL 3.x #90

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OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading with OpenSSL 3.x #90

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voxik commented on Mar 4, 2022

geemus commented on Mar 4, 2022

voxik commented on Mar 4, 2022

mpalmer commented on Dec 2, 2024

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`OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading` with OpenSSL 3.x #90