Branch p9 update bulletin.

Package php7 updated to version 7.3.32-alt1 for branch p9 in task 285278.

Published: 2021-10-25

BDU:2021-05228

Уязвимость компонента SAPI расширения PHP-FPM интерпретатора языка программирования PHP, позволяющая нарушителю повысить свои привилегии до root

Severity: HIGH (7.8) Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

CVE-2021-21703

Published: 2021-10-25
Modified: 2024-11-21

CVE-2021-21703

In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.

Severity: HIGH (7.0) Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References:

Version: 2.1.0

Branch p9 update on 2021-11-02

ALT-BU-2021-4323-13

ALT-PU-2021-3151-1

Closed vulnerabilities

BDU:2021-05228

CVE-2021-21703