Fix string replace with null (horde#3)

Signed-off-by: Christoph Wurst <[email protected]> Co-authored-by: Kieran <[email protected]>
ChristophWurst · May 23, 2022 · f04a388 · f04a388
1 parent c6cb6f9
commit f04a388
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/Horde/Mime/Headers/Element.php b/lib/Horde/Mime/Headers/Element.php
@@ -142,6 +142,9 @@ protected function _sanityCheck($data)
         }
 
         /* Ensure no null characters exist in header data. */
+		if ($data === null) {
+			return '';
+		}
         return str_replace("\0", '', $data);
     }