CVE-2016-20021

Published Jan 12, 2024

Last updated 10 months ago

CVSS critical 9.8

Overview

Description: 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.
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-347

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:gentoo:portage:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "81332CB9-672C-4676-8772-069B22C5C40F",
            "versionEndExcluding": "3.0.47"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References