GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.

NULL Pointer Dereference in DIGEST-MD5 Handling of GNU SASL 2.2.3 and Earlier

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.

libgsasl: Out of bounds read causes DoS

GNU SASL libgsasl server-side read-out-of-bounds with malicious authenticated GSS-API client