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CVE-2021-21703

Опубликовано: 01 окт. 2025
Источник: msrc
CVSS3: 7.8
EPSS Низкий

Описание

PHP-FPM memory access in root process leading to privilege escalation

EPSS

Процентиль: 34%
0.00133
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.8
ubuntu
около 4 лет назад

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.

CVSS3: 6.4
redhat
около 4 лет назад

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.

CVSS3: 7.8
nvd
около 4 лет назад

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.

CVSS3: 7.8
debian
около 4 лет назад

In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 a ...

suse-cvrf
почти 4 года назад

Security update for php72

EPSS

Процентиль: 34%
0.00133
Низкий

7.8 High

CVSS3