Alpine: multiple xen packages: security update to 4.14.1-r2 (deprecated)

medium Tenable Cloud Security Plugin ID 400263

Description

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

- An issue was discovered in Xen 4.9 through 4.14.x. On Arm, a guest is allowed to control whether memory
accesses are bypassing the cache. This means that Xen needs to ensure that all writes (such as the ones
during scrubbing) have reached the memory before handing over the page to a guest. Unfortunately, the
operation to clean the cache is happening before checking if the page was scrubbed. Therefore there is no
guarantee when all the writes will reach the memory. (CVE-2021-26933)

Plugin Details

Severity: Medium

ID: 400263

Version: Revision 1.23

Type: Local

Family: Alpine Linux Local Security Checks

Published: 8/16/2023

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-26933

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/27/2021

Vulnerability Publication Date: 2/16/2021

Reference Information

CVE: CVE-2021-26933

IAVB: 2021-B-0011-S

Detections

Analytics