This bug was fixed in the package cyrus-sasl2 - 2.1.27+dfsg2-2ubuntu1

---------------
cyrus-sasl2 (2.1.27+dfsg2-2ubuntu1) jammy; urgency=medium

  * d/p/0036-autoconf-270-fix.patch: fix configure.ac for autoconf 2.70.
    This also fixes detecting and enabling GSS-SPNEGO in our build.
    (LP: #1956833)

 -- Andreas Hasenack <andr...@canonical.com>  Sat, 08 Jan 2022 17:28:28
-0300

** Changed in: cyrus-sasl2 (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1956833

Title:
  No GSS-SPNEGO support in jammy

Status in cyrus-sasl2 package in Ubuntu:
  Fix Released
Status in cyrus-sasl2 package in Debian:
  New

Bug description:
  In jammy:
  root@j1:~# saslpluginviewer | head | grep SPNEGO
  root@j1:~# 

  Confirming against a windows 2016 active directory server, fully patched:
  root@j1:~# ldapwhoami -Y GSS-SPNEGO
  ldap_sasl_interactive_bind: Unknown authentication method (-6)
          additional info: SASL(-4): no mechanism available: No worthy mechs 
found

  
  gssapi (kerberos) works:
  root@j1:~# ldapwhoami -Y GSSAPI
  SASL/GSSAPI authentication started
  SASL username: administra...@internal.example.fake
  SASL SSF: 256
  SASL data security layer installed.
  u:INTEXAMPLE\Administrator

  root@j1:~# klist
  Ticket cache: FILE:/tmp/krb5cc_0
  Default principal: administra...@internal.example.fake

  Valid starting     Expires            Service principal
  01/08/22 22:31:48  01/09/22 08:31:48  
krbtgt/internal.example.f...@internal.example.fake
          renew until 01/09/22 22:31:45
  01/08/22 22:34:53  01/09/22 08:31:48  
ldap/win-kriet1e5elo.internal.example.fake@
          renew until 01/09/22 22:31:45
          Ticket server: 
ldap/win-kriet1e5elo.internal.example.f...@internal.example.fake

  
  In focal, GSS-SPNEGO works:
  root@f1:~# saslpluginviewer | head | grep SPNEGO
    GS2-IAKERB GS2-KRB5 SCRAM-SHA-1 SCRAM-SHA-256 GSSAPI GSS-SPNEGO DIGEST-MD5 
EXTERNAL NTLM CRAM-MD5 PLAIN LOGIN ANONYMOUS
    GS2-IAKERB GS2-KRB5 SCRAM-SHA-1 SCRAM-SHA-256 GSSAPI GSS-SPNEGO DIGEST-MD5 
NTLM CRAM-MD5 PLAIN LOGIN ANONYMOUS

  Confirming with ldapwhoami:
  root@f1:~# ldapwhoami -Y GSS-SPNEGO
  SASL/GSS-SPNEGO authentication started
  SASL username: administra...@internal.example.fake
  SASL SSF: 256
  SASL data security layer installed.
  u:INTEXAMPLE\Administrator

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