void xmlrpc_generic_error(int code, const char *string)
{
	char buf[1024];
	const char *ss;
	mowgli_string_t *s = mowgli_string_create();
	char *s2;
	int len;

	if (xmlrpc.encode)
	{
		snprintf(buf, sizeof buf, "<?xml version=\"1.0\" encoding=\"%s\" ?>\r\n<methodResponse>\r\n", xmlrpc.encode);
	}
	else
	{
		snprintf(buf, sizeof buf, "<?xml version=\"1.0\"?>\r\n<methodResponse>\r\n");
	}
	s->append(s, buf, strlen(buf));

	ss = " <fault>\r\n  <value>\r\n   <struct>\r\n    <member>\r\n     <name>faultCode</name>\r\n     <value><int>";
	s->append(s, ss, strlen(ss));
	snprintf(buf, sizeof buf, "%d", code);
	s->append(s, buf, strlen(buf));
	ss = "</int></value>\r\n    </member>\r\n    <member>\r\n     <name>faultString</name>\r\n     <value><string>";
	s->append(s, ss, strlen(ss));
	xmlrpc_append_char_encode(s, string);
	ss = "</string></value>\r\n    </member>\r\n   </struct>\r\n  </value>\r\n </fault>\r\n</methodResponse>",
	s->append(s, ss, strlen(ss));

	len = s->pos;

	if (xmlrpc.httpheader)
	{
		char *header = xmlrpc_write_header(len);
		s2 = smalloc(strlen(header) + len + 1);
		strcpy(s2, header);
		memcpy(s2 + strlen(header), s->str, len);
		xmlrpc.setbuffer(s2, len + strlen(header));
		free(header);
		free(s2);
	}
	else
		xmlrpc.setbuffer(s->str, len);

	s->destroy(s);
}

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.