An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| rubygems-update(RubyGems) | 2.6.0 | 2.7.9 | N/A |
| rubygems-update(RubyGems) | 3.0.0 | 3.0.2 | N/A |
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