The kernel in FreeBSD 4.x to 4.11 and 5.x to 5.4 does not properly clear certain fixed-length buffers when copying variable-length data for use by applications, which could allow those applications to read previously used sensitive memory.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freebsd | Freebsd | 4.1 (including) | 4.1 (including) |
| Freebsd | Freebsd | 4.2 (including) | 4.2 (including) |
| Freebsd | Freebsd | 4.3 (including) | 4.3 (including) |
| Freebsd | Freebsd | 4.4 (including) | 4.4 (including) |
| Freebsd | Freebsd | 4.5 (including) | 4.5 (including) |
| Freebsd | Freebsd | 4.6 (including) | 4.6 (including) |
| Freebsd | Freebsd | 4.7 (including) | 4.7 (including) |
| Freebsd | Freebsd | 4.8 (including) | 4.8 (including) |
| Freebsd | Freebsd | 4.9 (including) | 4.9 (including) |
| Freebsd | Freebsd | 4.10 (including) | 4.10 (including) |
| Freebsd | Freebsd | 4.11 (including) | 4.11 (including) |
| Freebsd | Freebsd | 5.1 (including) | 5.1 (including) |
| Freebsd | Freebsd | 5.2 (including) | 5.2 (including) |
| Freebsd | Freebsd | 5.3 (including) | 5.3 (including) |
| Freebsd | Freebsd | 5.4 (including) | 5.4 (including) |
| Kfreebsd-5 | Ubuntu | dapper | * |
| Kfreebsd-5 | Ubuntu | devel | * |
| Kfreebsd-5 | Ubuntu | edgy | * |
| Kfreebsd-5 | Ubuntu | feisty | * |