Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://bugs.php.net/bug.php?id=75605 ↗
- https://usn.ubuntu.com/3646-2/ ↗
- http://www.securityfocus.com/bid/104022 ↗
- https://www.debian.org/security/2018/dsa-4240 ↗
- https://www.tenable.com/security/tns-2018-12 ↗
- https://usn.ubuntu.com/3646-1/ ↗
- http://php.net/ChangeLog-5.php ↗
- https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html ↗
- http://php.net/ChangeLog-7.php ↗
- https://security.gentoo.org/glsa/201812-01 ↗
- https://security.netapp.com/advisory/ntap-20180607-0003/ ↗
- https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html ↗
- https://access.redhat.com/errata/RHSA-2019:2519 ↗