** Description changed:
[Impact]
When fips-preview is enabled in a Jammy server running openvpn --show-ciphers
returns no algorithms. This is caused by openvpn not loading the FIPS OpenSSL
provider. This actually works fine upstream but was broken by a previous ubuntu
patch that re-enables some algorithms that where moved to the legacy provider
by OpenSSL 3.0.
[Test Plan]
The bug can be reproduced by just running:
openvpn --show-ciphers
The non-patched version returns no algorithms and the patched version
should include a list of cipher algorithms like this:
AES-128-CBC (128 bit key, 128 bit block)
AES-128-CFB (128 bit key, 128 bit block, TLS client/server mode only)
AES-128-CFB1 (128 bit key, 128 bit block, TLS client/server mode only)
AES-128-CFB8 (128 bit key, 128 bit block, TLS client/server mode only)
AES-128-GCM (128 bit key, 128 bit block, TLS client/server mode only)
AES-128-OFB (128 bit key, 128 bit block, TLS client/server mode only)
...
[Where problems could occur]
- Just the function used to manually load openssl providers has been changed.
This one has an extra parameter that can retain the fallback providers if not
zero. This function is in fact called by the previously used function so it
should not add extra risks.
+ The function used to manually load openssl providers has been changed. This
one has an extra parameter that can retain the fallback providers if not zero.
This function is in fact called by the previously used function so it should
not add extra risks. The legacy and default providers are still loaded anyway
so worst case would be that the fallback is lost as before and the package
would not work on FIPS systems.
[Other Info]
This applies only for Jammy as other versions do not have this patch.
** Changed in: openvpn (Ubuntu Jammy)
Status: Incomplete => In Progress
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https://bugs.launchpad.net/bugs/2077769
Title:
fips-preview break openvpn ciphers
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