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Alpine: multiple containerd packages: security update to 1.5.9-r0

critical Tenable Cloud Security Plugin ID 403898

Description

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

 - containerd is an open source container runtime. On installations using SELinux, such as EL8 (CentOS,
 RHEL), Fedora, or SUSE MicroOS, with containerd since v1.5.0-beta.0 as the backing container runtime
 interface (CRI), an unprivileged pod scheduled to the node may bind mount, via hostPath volume, any
 privileged, regular file on disk for complete read/write access (sans delete). Such is achieved by placing
 the in-container location of the hostPath volume mount at either `/etc/hosts`, `/etc/hostname`, or
 `/etc/resolv.conf`. These locations are being relabeled indiscriminately to match the container process-
 label which effectively elevates permissions for savvy containers that would not normally be able to
 access privileged host files. This issue has been resolved in version 1.5.9. Users are advised to upgrade
 as soon as possible. (CVE-2021-43816)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-43816

Plugin Details

Severity: Critical

ID: 403898

Version: Revision 1.27

Type: Local

Published: 10/31/2023

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 95.11

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.7

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

CVSS Score Source: CVE-2021-43816

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

Vulnerability Publication Date: 1/5/2022

Reference Information

CVE: CVE-2021-43816