Executive Summary

Informations
Name CVE-2016-20021 First vendor Publication 2024-01-12
Vendor Cve Last vendor Modification 2024-01-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-20021

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-347 Improper Verification of Cryptographic Signature

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 7

Sources (Detail)

https://bugs.gentoo.org/597800
https://gitweb.gentoo.org/proj/portage.git/tree/NEWS
https://wiki.gentoo.org/wiki/Portage
Source Url

Alert History

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Date Informations
2024-01-27 00:27:43
  • Multiple Updates
2024-01-22 21:27:28
  • Multiple Updates
2024-01-18 00:27:23
  • Multiple Updates
2024-01-13 02:41:14
  • Multiple Updates
2024-01-13 01:34:14
  • Multiple Updates
2024-01-12 17:27:24
  • Multiple Updates
2024-01-12 09:27:27
  • First insertion