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Alpine: multiple libvirt packages: security update to 7.5.0-r0

medium Tenable Cloud Security Plugin ID 405359

Description

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

 - A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This
 flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out
 of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
 (CVE-2021-3631)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-3631

Plugin Details

Severity: Medium

ID: 405359

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: 4.3

Percentile: 53.04

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.6

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

CVSS Score Source: CVE-2021-3631

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 11/17/2020

Reference Information

CVE: CVE-2021-3631