[3.7] bpo-41561: Add workaround for Ubuntu's custom security level (GH-24915)#24928
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…ythonGH-24915) Ubuntu 20.04 comes with a patched OpenSSL 1.1.1. Default security level 2 blocks TLS 1.0 and 1.1 connections. Regular OpenSSL 1.1.1 builds allow TLS 1.0 and 1.1 on security level 2. See: See: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1899878 See: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1917625 Signed-off-by: Christian Heimes <christian@python.org>. (cherry picked from commit f6c6b58) Co-authored-by: Christian Heimes <christian@python.org>
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@tiran Technically, this change does not seem to meet the criteria for a release in its security-fix-only phase. But it seems reasonable enough to simplify CI issues etc. If we allow it for 3.7, then what about for 3.6 which is also still in its security-fix-only phase? |
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@ned-deily yeah, it makes sense to backport the workaround to 3.6, too. |
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Looking more closely at this, it does not backport cleanly to 3.6 and I don't think it's worth the effort. |
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Ubuntu 20.04 comes with a patched OpenSSL 1.1.1. Default security level
2 blocks TLS 1.0 and 1.1 connections. Regular OpenSSL 1.1.1 builds allow
TLS 1.0 and 1.1 on security level 2.
See:
See: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1899878
See: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1917625
Signed-off-by: Christian Heimes christian@python.org.
(cherry picked from commit f6c6b58)
Co-authored-by: Christian Heimes christian@python.org
https://bugs.python.org/issue41561