CVE-2020-36327

high

Description

Bundler 1.16.0 through 2.2.9 and 2.2.11 through 2.2.16 sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application. NOTE: it is not correct to use CVE-2021-24105 for every "Dependency Confusion" issue in every product.

References

https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24105

https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/

https://github.com/rubygems/rubygems/issues/3982

https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html

Details

Source: Mitre, NVD

Published: 2021-04-29

Updated: 2023-11-07

Risk Information

CVSS v2

Base Score: 9.3

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

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High