CVE-2023-25564

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements
NTLM authentication. Prior to version 1.2.0, memory corruption can be
triggered when decoding UTF16 strings. The variable outlen was not
initialized and could cause writing a zero to an arbitrary place in memory
if ntlm_str_convert() were to fail, which would leave outlen
uninitialized. This can lead to a denial of service if the write hits
unmapped memory or randomly corrupts a byte in the application memory
space. This vulnerability can trigger an out-of-bounds write, leading to
memory corruption. This vulnerability can be triggered via the main
gss_accept_sec_context entry point. This issue is fixed in version 1.2.0.