Detections
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Alpine: multiple qemu packages: security update to 7.0.0-r0

medium Tenable Cloud Security Plugin ID 406794

Description

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

 - A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within
 the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service
 condition. (CVE-2021-4158)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-4158

Plugin Details

Severity: Medium

ID: 406794

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: 3.3

Percentile: 51.06

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-4158

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.4

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/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: 5/10/2022

Reference Information

CVE: CVE-2021-4158