view src/beval.h @ 33664:06b59278bfcf v9.0.2070

patch 9.0.2070: [security] disallow setting env in restricted mode Commit: https://github.com/vim/vim/commit/6b89dd6a7257a1e2e9c7ea070b407bc4674a5118 Author: Christian Brabandt <cb@256bit.org> Date: Thu Oct 26 22:14:17 2023 +0200 patch 9.0.2070: [security] disallow setting env in restricted mode Problem: [security] disallow setting env in restricted mode Solution: Setting environment variables in restricted mode could potentially be used to execute shell commands. Disallow this. restricted mode: disable allow setting of environment variables Setting environment variables in restricted mode, may have some unwanted consequences. So, for example by setting $GCONV_PATH in restricted mode and then calling the iconv() function, one may be able to execute some unwanted payload, because the `iconv_open()` function internally uses the `$GCONV_PATH` variable to find its conversion data. So let's disable setting environment variables, even so this is no complete protection, since we are not clearing the existing environment. I tried a few ways but wasn't successful :( One could also argue to disable the iconv() function completely in restricted mode, but who knows what other API functions can be influenced by setting some other unrelated environment variables. So let's leave it as it is currently. closes: #13394 See: https://huntr.com/bounties/b0a2eda1-459c-4e36-98e6-0cc7d7faccfe/ Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 26 Oct 2023 22:30:03 +0200
parents 352701a626ed
children
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/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *			Visual Workshop integration by Gordon Prieur
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

#if !defined(BEVAL__H) && (defined(FEAT_BEVAL) || defined(PROTO))
#define BEVAL__H

#ifdef FEAT_GUI_GTK
# ifdef USE_GTK3
#  include <gtk/gtk.h>
# else
#  include <gtk/gtkwidget.h>
# endif
#else
# if defined(FEAT_GUI_X11)
#  include <X11/Intrinsic.h>
# endif
#endif

typedef enum
{
    ShS_NEUTRAL,			// nothing showing or pending
    ShS_PENDING,			// data requested from debugger
    ShS_UPDATE_PENDING,			// switching information displayed
    ShS_SHOWING				// the balloon is being displayed
} BeState;

typedef struct BalloonEvalStruct
{
#ifdef FEAT_BEVAL_GUI
# ifdef FEAT_GUI_GTK
    GtkWidget		*target;	// widget we are monitoring
    GtkWidget		*balloonShell;
    GtkWidget		*balloonLabel;
    unsigned int	timerID;	// timer for run
    BeState		showState;	// tells us what's currently going on
    int			x;
    int			y;
    unsigned int	state;		// Button/Modifier key state
# else
#  if !defined(FEAT_GUI_MSWIN)
    Widget		target;		// widget we are monitoring
    Widget		balloonShell;
    Widget		balloonLabel;
    XtIntervalId	timerID;	// timer for run
    BeState		showState;	// tells us what's currently going on
    XtAppContext	appContext;	// used in event handler
    Position		x;
    Position		y;
    Position		x_root;
    Position		y_root;
    int			state;		// Button/Modifier key state
#  else
    HWND		target;
    HWND		balloon;
    int			x;
    int			y;
    BeState		showState;	// tells us what's currently going on
#  endif
# endif
# if !defined(FEAT_GUI_GTK) && !defined(FEAT_GUI_MSWIN)
    Dimension		screen_width;	// screen width in pixels
    Dimension		screen_height;	// screen height in pixels
# endif
    void		(*msgCB)(struct BalloonEvalStruct *, int);
    void		*clientData;	// For callback
#endif

    int			ts;		// tabstop setting for this buffer
#ifdef FEAT_VARTABS
    int			*vts;		// vartabstop setting for this buffer
#endif
    char_u		*msg;		// allocated: current text
#ifdef FEAT_GUI_MSWIN
    void		*tofree;
#endif
#ifdef FEAT_GUI_HAIKU
    int			x;
    int			y;
#endif
} BalloonEval;

#define EVAL_OFFSET_X 15 // displacement of beval topleft corner from pointer
#define EVAL_OFFSET_Y 10

#ifdef FEAT_BEVAL_GUI
# include "gui_beval.pro"
#endif

#endif // BEVAL__H and FEAT_BEVAL_GUI