See https://github.com/heimdal/heimdal/pull/1018.
"o CVE-2022-3437: There is a limited write heap buffer overflow in the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal (included in Samba). https://www.samba.org/samba/security/CVE-2022-3437.html
*** This bug has been marked as a duplicate of bug 881429 ***