This update for php53 fixes the following issues: The following security issues were fixed: - CVE-2018-14851: Fixed an out-of-bound read in exif_process_IFD_in_MAKERNOTE, which could be exploited by an attacker via crafted JPG files, and could result in an application crash. - CVE-2018-14883: Fixed an integer overflow leading to a heap based buffer over-read in exif_thumbnail_extract of exif.c. - CVE-2017-9118: Fixed an out of bounds access in php_pcre_replace_impl via a crafted preg_replace call