Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ruby | Ruby-lang | 1.8.3 | 1.8.3 |
| Ruby | Ruby-lang | 1.8.2 | 1.8.2 |
| Ruby | Ruby-lang | 1.8.4 | 1.8.4 |
| Ruby | Ruby-lang | 1.8.1 | 1.8.1 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.9.0 | 1.9.0 |
| Ruby | Ruby-lang | 1.8.2 | 1.8.2 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.4 | 1.8.4 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.4 | 1.8.4 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.3 | 1.8.3 |
| Ruby | Ruby-lang | * | 1.8.5 |
| Ruby | Ruby-lang | 1.8.3 | 1.8.3 |
| Ruby | Ruby-lang | 1.8.2 | 1.8.2 |
| Ruby | Ruby-lang | 1.8.4 | 1.8.4 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.1 | 1.8.1 |
| Ruby | Ruby-lang | 1.8.2 | 1.8.2 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.3 | 1.8.3 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.0 | 1.8.0 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.6.8 | 1.6.8 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.6 | 1.8.6 |
| Ruby | Ruby-lang | 1.8.7 | 1.8.7 |
| Ruby | Ruby-lang | 1.8.5 | 1.8.5 |
| Ruby1.8 | Ubuntu | dapper | * |
| Ruby1.8 | Ubuntu | feisty | * |
| Ruby1.8 | Ubuntu | gutsy | * |
| Ruby1.8 | Ubuntu | hardy | * |
| Ruby1.8 | Ubuntu | upstream | * |
| Ruby1.9 | Ubuntu | dapper | * |
| Ruby1.9 | Ubuntu | feisty | * |
| Ruby1.9 | Ubuntu | gutsy | * |
| Ruby1.9 | Ubuntu | hardy | * |
| Ruby1.9 | Ubuntu | intrepid | * |
| Ruby1.9 | Ubuntu | jaunty | * |
| Ruby1.9 | Ubuntu | karmic | * |
| Ruby1.9 | Ubuntu | lucid | * |
| Ruby1.9 | Ubuntu | upstream | * |