Merge pull request #4581 from Snuffleupagus/issue-4575

Check that images have valid dimensions (issue 4575)
mozilla · Apr 14, 2014 · f954cde · f954cde
2 parents eb8924a + 3a9b5b3
commit f954cde
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/core/evaluator.js b/src/core/evaluator.js
@@ -139,6 +139,10 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var w = dict.get('Width', 'W');
       var h = dict.get('Height', 'H');
 
+      if (!(w && isNum(w)) || !(h && isNum(h))) {
+        warn('Image dimensions are missing, or not numbers.');
+        return;
+      }
       if (PDFJS.maxImageSize !== -1 && w * h > PDFJS.maxImageSize) {
         warn('Image exceeded maximum allowed size and was removed.');
         return;