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) |
| Red Hat Enterprise Linux 4 | RedHat | ruby-0:1.8.1-16.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | ruby-0:1.8.5-19.el5_6.1 | * |
| Red Hat Enterprise Linux 6 | RedHat | ruby-0:1.8.7.299-7.el6_1.1 | * |
| Ruby1.8 | Ubuntu | dapper | * |
| Ruby1.8 | Ubuntu | hardy | * |
| Ruby1.8 | Ubuntu | karmic | * |
| Ruby1.8 | Ubuntu | lucid | * |
| Ruby1.8 | Ubuntu | maverick | * |
| Ruby1.8 | Ubuntu | natty | * |
| Ruby1.8 | Ubuntu | upstream | * |
| Ruby1.9 | Ubuntu | dapper | * |
| Ruby1.9 | Ubuntu | hardy | * |
| Ruby1.9 | Ubuntu | karmic | * |
| Ruby1.9.1 | Ubuntu | devel | * |
| Ruby1.9.1 | Ubuntu | karmic | * |
| Ruby1.9.1 | Ubuntu | maverick | * |
| Ruby1.9.1 | Ubuntu | precise | * |