Internet Bug Bounty: Invalid Read on exif_process_SOFn

This bug is present in exifscanthumbnail method of ext/exif/exif.c file. Detailed description and steps to reproduce for this bug is present in bug report submitted to php.net. Bug Report : https://bugs.php.net/bug.php?id=77540 PHP version : 7.1.26 CVE-ID : 2019-9640 Impact This bug may allow an...