UBUNTU-CVE-2018-10545

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UBUNTU-CVE-2018-10545

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2018-10545, http://php.net/ChangeLog-5.php, http://php.net/ChangeLog-7.php, https://ubuntu.com/security/notices/USN-3646-1, https://ubuntu.com/security/notices/USN-3646-2, https://www.cve.org/CVERecord?id=CVE-2018-10545