The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ruby | Ruby-lang | 1.8.6 (including) | 1.8.6 (including) |
| Ruby | Ruby-lang | 1.8.6-420 (including) | 1.8.6-420 (including) |
| Ruby | Ruby-lang | 1.8.7 (including) | 1.8.7 (including) |
| Ruby | Ruby-lang | 1.8.7-330 (including) | 1.8.7-330 (including) |
| Ruby | Ruby-lang | 1.8.8-dev (including) | 1.8.8-dev (including) |