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.
| Software | From | Fixed in |
|---|---|---|
| rubygems / rubygems | 2.6.0 | 3.0.2.x |
| debian / debian_linux | 9.0 | 9.0.x |
| opensuse / leap | 15.0 | 15.0.x |
| opensuse / leap | 15.1 | 15.1.x |
| redhat / enterprise_linux | 8.0 | 8.0.x |
rubygems-update
|
2.6.0 | 2.7.9 |
rubygems-update
|
3.0.0 | 3.0.2 |