A flaw was found in "sssd-kcm". A local user or process able to connect to the "sssd-kcm" UNIX socket can exploit this vulnerability. By sending a large request length header and then stalling the connection, an attacker can cause the system to preallocate significant memory. This leads to memory exhaustion within the "sssd-kcm" responder, resulting in a Denial of Service (DoS) for affected deployments.