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CVE-2018-10545

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-3646-2
Posted May 16, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3646-2 - USN-3646-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that PHP incorrectly handled opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user's PHP applications. Various other issues were also addressed.

tags | advisory, local, php
systems | linux, ubuntu
advisories | CVE-2018-10545, CVE-2018-10547, CVE-2018-10548
MD5 | ae0a82d9affb22e21c4f389ad7789281
Ubuntu Security Notice USN-3646-1
Posted May 14, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3646-1 - It was discovered that PHP incorrectly handled opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user's PHP applications. It was discovered that the PHP iconv stream filter incorrect handled certain invalid multibyte sequences. A remote attacker could possibly use this issue to cause PHP to hang, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, local, php
systems | linux, ubuntu
advisories | CVE-2018-10545, CVE-2018-10546, CVE-2018-10547, CVE-2018-10548, CVE-2018-10549
MD5 | 671fb2061c1fff15655f741886b1e10a
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