Fix PHP Warning: exif_read_data(...): Illegal IFD size (#6169)

CHANGELOG

@@ -4,6 +4,7 @@ CHANGELOG Roundcube Webmail
 - Managesieve: Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
 - Managesieve: Fix missing Save button in Edit Filter Set page of Classic skin (#6154)
 - Fix duplicated labels in Test SMTP Config section (#6166)
+- Fix PHP Warning: exif_read_data(...): Illegal IFD size (#6169)
 
 RELEASE 1.3.4
 -------------

program/lib/Roundcube/rcube_image.php

@@ -256,9 +256,9 @@ class rcube_image
                 imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $props['width'], $props['height']);
                 $image = $new_image;
 
-                // fix rotation of image if EXIF data exists and specifies rotation (GD strips the EXIF data)
+                // fix orientation of image if EXIF data exists and specifies orientation (GD strips the EXIF data)
                 if ($this->image_file && $type == 'jpg' && function_exists('exif_read_data')) {
-                    $exif = exif_read_data($this->image_file);
+                    $exif = @exif_read_data($this->image_file);
                     if ($exif && $exif['Orientation']) {
                         switch ($exif['Orientation']) {
                             case 3: