Detections
Analytics

Alpine: multiple pyc packages, multiple python3 packages: security update to 3.9.5-r0

critical Tenable Self-Hosted Container Security Plugin ID 424406

Description

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

 - In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP
 address string. This (in some situations) allows attackers to bypass access control that is based on IP
 addresses. (CVE-2021-29921)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-29921

Plugin Details

Severity: Critical

ID: 424406

Version: Revision 1.9

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-29921

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: 5/6/2021

Reference Information

CVE: CVE-2021-29921

IAVA: 2021-A-0263-S