CVE-2018-10545 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

http://php.net/ChangeLog-5.php http://php.net/ChangeLog-7.php http://www.securityfocus.com/bid/104022 https://access.redhat.com/errata/RHSA-2019:2519 https://bugs.php.net/bug.php?id=75605 https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html https://security.gentoo.org/glsa/201812-01 https://security.netapp.com/advisory/ntap-20180607-0003/ https://usn.ubuntu.com/3646-1/ https://usn.ubuntu.com/3646-2/ https://www.debian.org/security/2018/dsa-4240 https://www.tenable.com/security/tns-2018-12

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

4.7