CVE-2018-10545

An issue was discovered in PHP before 5.6.35, 7.0.x before 7.0.29, 7.1.x
before 7.1.16, and 7.2.x before 7.2.4. Dumpable FPM child processes allow
bypassing opcache access controls because fpm_unix.c makes a
PR_SET_DUMPABLE prctl call, allowing one user (in a multiuser environment)
to obtain sensitive information from the process memory of a second user’s
PHP applications by running gcore on the PID of the PHP-FPM worker process.

Bugs

• <https://bugs.php.net/bug.php?id=75605&gt;