[Bug 1975567] Re: Proftpd 1.3.7c not working with openssl 3

[Dan Corrigan]

I just decided to upgrade my FTP servers from 18.04 to 22.04 and ran
into this same bug.

I've been boxing with this for hours before discovering this bug.

Any workaround / fix ?

2022-10-12 22:14:49,614 mod_sftp/1.0.1[9390]: error encrypting aes128-ctr data for client: (unknown)
2022-10-12 22:14:49,614 mod_sftp/1.0.1[9390]: disconnecting 10.40.12.170 (Application disconnected)
2022-10-12 22:14:49,614 mod_sftp/1.0.1[9390]: error encrypting aes128-ctr data for client: (unknown)

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https://bugs.launchpad.net/bugs/1975567

Title:
  Proftpd 1.3.7c not working with openssl 3

Status in proftpd-dfsg package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  On ubuntu 22.04, the current version of Proftpd 1.3.7c+dfsg-1build1 doesn't work with openssl 3.0.
  The result of this issue is : you can't connect with sftp.

  You can see two issues with the same problem :

  https://github.com/proftpd/proftpd/issues/1448
  https://github.com/proftpd/proftpd/issues/1469

  The problem for sftp module is fixed in 1.3.7e version :
  1.3.7e
  --------------------------------
  - Issue 1448 - Ensure that mod_sftp algorithms work properly with OpenSSL 3.x.

  https://github.com/proftpd/proftpd/blob/1.3.7/NEWS

  This is the commit for the fix :
  https://github.com/proftpd/proftpd/commit/8aa39b27d8fd6ada556b51c4547a504956474078

  Thanks for the help.

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