--- kdebase-4.3.90/apps/konsole/src/main.cpp~	2010-01-20 19:43:25 +0300
+++ kdebase-4.3.90/apps/konsole/src/main.cpp	2010-01-20 19:56:19 +0300
@@ -17,6 +17,8 @@
     02110-1301  USA.
 */
 
+#include <unistd.h>
+
 // Own
 #include "Application.h"
 #include "MainWindow.h"
@@ -72,7 +74,10 @@ extern "C" int KDE_EXPORT kdemain(int ar
         exit(0);
     }
     
+    gid_t gid = getgid(), egid = getegid();
+    setresgid(gid,gid,egid);
     Application app;
+    setegid(egid);
     restoreSession(app);
     return app.exec();
 }
--- kdebase-4.1.3/apps/konsole/src/Pty.cpp~	2008-05-21 12:32:54 +0400
+++ kdebase-4.1.3/apps/konsole/src/Pty.cpp	2008-11-07 17:12:25 +0300
@@ -209,7 +209,10 @@ int Pty::start(const QString& program, 
   
   pty()->setWinSize(_windowLines, _windowColumns);
 
+  gid_t gid = getgid(), egid = getegid();
+  setresgid(gid,gid,egid);
   KProcess::start();
+  setegid(egid);
 
   if (!waitForStarted())
   	return -1;