client/mount.cifs.c in mount.cifs in smbfs in Samba 3.0.22, 3.0.28a, 3.2.3, 3.3.2, 3.4.0, and 3.4.5 allows local users to mount a CIFS share on an arbitrary mountpoint, and gain privileges, via a symlink attack on the mountpoint directory file.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | 3.0.22 (including) | 3.0.22 (including) |
| Samba | Samba | 3.0.28a (including) | 3.0.28a (including) |
| Samba | Samba | 3.2.3 (including) | 3.2.3 (including) |
| Samba | Samba | 3.4.0 (including) | 3.4.0 (including) |
| Samba | Samba | 3.4.5 (including) | 3.4.5 (including) |
| Red Hat Enterprise Linux 4 | RedHat | samba-0:3.0.33-0.34.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | samba3x-0:3.5.4-0.70.el5 | * |
| Red Hat Enterprise Linux 5 | RedHat | samba-0:3.0.33-3.29.el5_7.4 | * |
| Samba | Ubuntu | dapper | * |
| Samba | Ubuntu | devel | * |
| Samba | Ubuntu | hardy | * |
| Samba | Ubuntu | intrepid | * |
| Samba | Ubuntu | jaunty | * |
| Samba | Ubuntu | karmic | * |