irc_ctcp_display_request (struct t_irc_server *server,
                          time_t date,
                          const char *command,
                          struct t_irc_channel *channel,
                          const char *nick,
                          const char *address,
                          const char *ctcp,
                          const char *arguments,
                          const char *reply)
{
    /* CTCP blocked and user doesn't want to see message? then just return */
    if (reply && !reply[0]
        && !weechat_config_boolean (irc_config_look_display_ctcp_blocked))
        return;

    weechat_printf_date_tags (
        irc_msgbuffer_get_target_buffer (
            server, nick, NULL, "ctcp",
            (channel) ? channel->buffer : NULL),
        date,
        irc_protocol_tags (command, "irc_ctcp", NULL, address),
        _("%sCTCP requested by %s%s%s: %s%s%s%s%s%s"),
        weechat_prefix ("network"),
        irc_nick_color_for_msg (server, 0, NULL, nick),
        nick,
        IRC_COLOR_RESET,
        IRC_COLOR_CHAT_CHANNEL,
        ctcp,
        IRC_COLOR_RESET,
        (arguments) ? " " : "",
        (arguments) ? arguments : "",
        (reply && !reply[0]) ? _(" (blocked)") : "");
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.