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.
| Software | From | Fixed in |
|---|---|---|
| php / php | 7.2.0 | 7.2.7.x |
| canonical / ubuntu_linux | 18.04 | 18.04.x |