php53 was updated to fix five security issues. These security issues were fixed: - CVE-2016-5769: mcrypt: Heap Overflow due to integer overflows . - CVE-2015-8935: XSS in header with Internet Explorer . - CVE-2016-5772: Double Free Courruption in wddx_deserialize . - CVE-2016-5766: Integer Overflow in _gd2GetHeader resulting in heap overflow . - CVE-2016-5767: Integer Overflow in gdImagePaletteToTrueColor resulting in heap overflow .