diff options
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tkImgGIF.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/generic/tkImgGIF.c b/generic/tkImgGIF.c index 61a2947..b31c64d 100644 --- a/generic/tkImgGIF.c +++ b/generic/tkImgGIF.c @@ -32,7 +32,7 @@ * This file also contains code from miGIF. See lower down in file for the * applicable copyright notice for that portion. * - * RCS: @(#) $Id: tkImgGIF.c,v 1.40 2007/12/13 15:24:14 dgp Exp $ + * RCS: @(#) $Id: tkImgGIF.c,v 1.41 2008/02/01 16:53:53 rmax Exp $ */ #include "tkInt.h" @@ -879,6 +879,12 @@ ReadImage( Tcl_PosixError(interp), NULL); return TCL_ERROR; } + + if (initialCodeSize > MAX_LWZ_BITS) { + Tcl_SetResult(interp, "malformed image", TCL_STATIC); + return TCL_ERROR; + } + if (transparent != -1) { cmap[transparent][CM_RED] = 0; cmap[transparent][CM_GREEN] = 0; |