| diff --git a/third_party/libtiff/tif_dirread.c b/third_party/libtiff/tif_dirread.c | 
 | index 5e62e8131..521dbf0a4 100644 | 
 | --- a/third_party/libtiff/tif_dirread.c | 
 | +++ b/third_party/libtiff/tif_dirread.c | 
 | @@ -41,6 +41,7 @@ | 
 |   | 
 |  #include "tiffiop.h" | 
 |  #include <float.h> | 
 | +#include <limits.h> | 
 |  #include <stdlib.h> | 
 |   | 
 |  #define IGNORE 0          /* tag placeholder used below */ | 
 | @@ -3743,6 +3744,13 @@ TIFFReadDirectory(TIFF* tif) | 
 |  		    isTiled(tif) ? "tiles" : "strips"); | 
 |  		goto bad; | 
 |  	} | 
 | +	if (tif->tif_dir.td_nstrips > INT_MAX) { | 
 | +		TIFFErrorExt(tif->tif_clientdata, module, | 
 | +		    "Cannot handle %u number of %s", | 
 | +		    tif->tif_dir.td_nstrips, | 
 | +		    isTiled(tif) ? "tiles" : "strips"); | 
 | +		goto bad; | 
 | +	} | 
 |  	tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips; | 
 |  	if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE) | 
 |  		tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel; |