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.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
| Link | Tags |
|---|---|
| https://bugs.php.net/bug.php?id=75605 | issue tracking patch vendor advisory |
| https://usn.ubuntu.com/3646-2/ | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/104022 | vdb entry third party advisory |
| https://www.debian.org/security/2018/dsa-4240 | third party advisory vendor advisory |
| https://www.tenable.com/security/tns-2018-12 | third party advisory |
| https://usn.ubuntu.com/3646-1/ | third party advisory vendor advisory |
| http://php.net/ChangeLog-5.php | patch vendor advisory |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html | third party advisory mailing list |
| http://php.net/ChangeLog-7.php | patch vendor advisory |
| https://security.gentoo.org/glsa/201812-01 | third party advisory vendor advisory |
| https://security.netapp.com/advisory/ntap-20180607-0003/ | third party advisory |
| https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html | third party advisory mailing list |
| https://access.redhat.com/errata/RHSA-2019:2519 | vendor advisory |