CVE-2018-12882: php: Use-after-free reachable via the exif.c:exif_read_from_impl() function

Severity: Critical

CVSS Score: 9.8

exif_read_from_impl in ext/exif/exif.c in PHP 7.2.x through 7.2.7 allows attackers to trigger a use-after-free (in exif_read_from_file) because it closes a stream that it is not responsible for closing. The vulnerable code is reachable through the PHP exif_read_data function.