pkgs/tools/admin/tightvnc/1.3.10-CVE-2019-8287.patch

   1 Adapted from https://github.com/LibVNC/libvncserver/commit/7b1ef0ffc4815cab9a96c7278394152bdc89dc4d
   2 diff --git a/vncviewer/corre.c b/vncviewer/corre.c
   3 index c846a10..a4c272d 100644
   4 --- a/vncviewer/corre.c
   5 +++ b/vncviewer/corre.c
   6 @@ -56,7 +56,7 @@ HandleCoRREBPP (int rx, int ry, int rw, int rh)
   7      XChangeGC(dpy, gc, GCForeground, &gcv);
   8      XFillRectangle(dpy, desktopWin, gc, rx, ry, rw, rh);
   9
  10 -    if (!ReadFromRFBServer(buffer, hdr.nSubrects * (4 + (BPP / 8))))
  11 +    if (hdr.nSubrects > BUFFER_SIZE / (4 + (BPP / 8)) || !ReadFromRFBServer(buffer, hdr.nSubrects * (4 + (BPP / 8))))
  12         return False;
  13
  14      ptr = (CARD8 *)buffer;