Alpine: multiple avahi packages, multiple py3-avahi packages: security update to 0.8-r4

medium Tenable Cloud Security Plugin ID 423687

Description

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

- A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the
client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing
a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the
availability of the avahi service, which becomes unresponsive after this flaw is triggered.
(CVE-2021-3468)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-3468

https://security.alpinelinux.org/vuln/CVE-2021-36217

Plugin Details

Severity: Medium

ID: 423687

Version: Revision 1.9

Type: Local

Published: 4/4/2025

Updated: 11/4/2025

Supported Sensors: Agentless Assessment

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:N/I:N/A:P

CVSS Score Source: CVE-2021-3468

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:N/I:N/A:H

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-3468