Alpine: multiple php81 packages: security update to 8.1.0-r1 (deprecated)

high Tenable Cloud Security Plugin ID 400013

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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.
(CVE-2021-21703)

Plugin Details

Severity: High

ID: 400013

Version: Revision 1.29

Type: Local

Family: Alpine Linux Local Security Checks

Published: 1/31/2022

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 97.16

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-21703

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/28/2021

Vulnerability Publication Date: 10/25/2021

Reference Information

CVE: CVE-2021-21703

IAVA: 2021-A-0503

Detections

Analytics