CVE-2020-36327
HIGHBundler 1.16.0-2.2.9, 2.2.11-2.2.16 - Info Disclosure
Title source: llmDescription
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 (6)
Core 6
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/rubygems/rubygems/issues/3982
Patch, Vendor Advisory x_refsource_misc
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24105
Vendor Advisory x_refsource_misc
https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html
Third Party Advisory x_refsource_misc
https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/
Exploit, Third Party Advisory x_refsource_misc
https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/
Scores
CVSS v3
8.8
EPSS
0.2472
EPSS Percentile
96.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
Status
published
Products (4)
bundler/bundler
1.16.0 - 2.2.10
fedoraproject/fedora
34
microsoft/package_manager_configurations
rubygems/bundler
1.16.0 - 2.2.10RubyGems
Published
Apr 29, 2021
Tracked Since
Feb 18, 2026