Off-by-one error in the __opiereadrec function in readrec.c in libopie in OPIE 2.4.1-test1 and earlier, as used on FreeBSD 6.4 through 8.1-PRERELEASE and other platforms, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long username, as demonstrated by a long USER command to the FreeBSD 8.0 ftpd.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freebsd | Freebsd | 6-stable (including) | 6-stable (including) |
| Freebsd | Freebsd | 6.4 (including) | 6.4 (including) |
| Freebsd | Freebsd | 6.4-release (including) | 6.4-release (including) |
| Freebsd | Freebsd | 6.4-release_p2 (including) | 6.4-release_p2 (including) |
| Freebsd | Freebsd | 6.4-release_p3 (including) | 6.4-release_p3 (including) |
| Freebsd | Freebsd | 6.4-release_p4 (including) | 6.4-release_p4 (including) |
| Freebsd | Freebsd | 6.4-release_p5 (including) | 6.4-release_p5 (including) |
| Freebsd | Freebsd | 6.4-stable (including) | 6.4-stable (including) |
| Freebsd | Freebsd | 7.0 (including) | 7.0 (including) |
| Freebsd | Freebsd | 7.0-beta_4 (including) | 7.0-beta_4 (including) |
| Freebsd | Freebsd | 7.0-current (including) | 7.0-current (including) |
| Freebsd | Freebsd | 7.0-pre-release (including) | 7.0-pre-release (including) |
| Freebsd | Freebsd | 7.0-release (including) | 7.0-release (including) |
| Freebsd | Freebsd | 7.0-release-p12 (including) | 7.0-release-p12 (including) |
| Freebsd | Freebsd | 7.0-release-p8 (including) | 7.0-release-p8 (including) |
| Freebsd | Freebsd | 7.0-release-p9 (including) | 7.0-release-p9 (including) |
| Freebsd | Freebsd | 7.0-releng (including) | 7.0-releng (including) |
| Freebsd | Freebsd | 7.0-stable (including) | 7.0-stable (including) |
| Freebsd | Freebsd | 7.0_beta4 (including) | 7.0_beta4 (including) |
| Freebsd | Freebsd | 7.0_releng (including) | 7.0_releng (including) |
| Freebsd | Freebsd | 7.1 (including) | 7.1 (including) |
| Freebsd | Freebsd | 7.1-pre-release (including) | 7.1-pre-release (including) |
| Freebsd | Freebsd | 7.1-rc1 (including) | 7.1-rc1 (including) |
| Freebsd | Freebsd | 7.1-release-p1 (including) | 7.1-release-p1 (including) |
| Freebsd | Freebsd | 7.1-release-p2 (including) | 7.1-release-p2 (including) |
| Freebsd | Freebsd | 7.1-release-p4 (including) | 7.1-release-p4 (including) |
| Freebsd | Freebsd | 7.1-release-p5 (including) | 7.1-release-p5 (including) |
| Freebsd | Freebsd | 7.1-release-p6 (including) | 7.1-release-p6 (including) |
| Freebsd | Freebsd | 7.1-stable (including) | 7.1-stable (including) |
| Freebsd | Freebsd | 7.2 (including) | 7.2 (including) |
| Freebsd | Freebsd | 7.2-pre-release (including) | 7.2-pre-release (including) |
| Freebsd | Freebsd | 7.2-stable (including) | 7.2-stable (including) |
| Freebsd | Freebsd | 8.0 (including) | 8.0 (including) |
| Freebsd | Freebsd | 8.1-prerelease (including) | 8.1-prerelease (including) |
| Opie | Ubuntu | devel | * |
| Opie | Ubuntu | jaunty | * |
| Opie | Ubuntu | karmic | * |
| Opie | Ubuntu | lucid | * |