MAGETWO-88645: Error while deleting a Product Image

Author: DianaRusin

app/code/Magento/Catalog/Model/Product/Gallery/UpdateHandler.php

@@ -32,6 +32,9 @@ protected function processDeletedImages($product, array &$images)
         foreach ($images as &$image) {
             if (!empty($image['removed'])) {
                 if (!empty($image['value_id']) && !isset($picturesInOtherStores[$image['file']])) {
+                    if (preg_match('/\.\.(\\\|\/)/', $image['file'])) {
+                        continue;
+                    }
                     $recordsToDelete[] = $image['value_id'];
                     $catalogPath = $this->mediaConfig->getBaseMediaPath();
                     $isFile = $this->mediaDirectory->isFile($catalogPath . $image['file']);