RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, and Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contain an Improper Verification of Cryptographic Signature vulnerability in package.rb. This can result in a mis-signed gem being installed, as the tarball would contain multiple gem signatures. This vulnerability has been fixed in 2.7.6.
{ "nvd_published_at": "2018-03-13T15:29:00Z", "cwe_ids": [ "CWE-347" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2023-03-08T19:49:18Z" }