Detections
Analytics

SCA: security update for portage (GHSA-pw5x-x5jw-ccmh)

critical Tenable Self-Hosted Container Security Plugin ID 421492

Description

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

 - In Gentoo Portage before 3.0.47, there is missing PGP validation of executed code: the standalone emerge-
 webrsync downloads a .gpgsig file but does not perform signature verification. Unless emerge-webrsync is
 used, Portage is not vulnerable. (CVE-2016-20021)

See Also

https://github.com/advisories/GHSA-pw5x-x5jw-ccmh

Plugin Details

Severity: Critical

ID: 421492

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/28/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2016-20021

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2024

Vulnerability Publication Date: 1/12/2024

Reference Information

CVE: CVE-2016-20021

cwe: CWE-347