Detections
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Alpine: multiple containerd packages: security update to 1.4.8-r0

medium Tenable Self-Hosted Container Security Plugin ID 403892

Description

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

 - containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where
 pulling and extracting a specially-crafted container image can result in Unix file permission changes for
 existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner
 of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does
 not directly allow files to be read, modified, or executed without an additional cooperating process. This
 bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from
 trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially
 affected by this bug through policies and profiles that prevent containerd from interacting with specific
 files. (CVE-2021-32760)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-32760

Plugin Details

Severity: Medium

ID: 403892

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: Low

Score: 2.8

Percentile: 22.22

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-32760

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/19/2021

Reference Information

CVE: CVE-2021-32760