The dupfdopen function in sys/kern/kern_descrip.c in OpenBSD 3.7 and 3.8 allows local users to re-open arbitrary files by using setuid programs to access file descriptors using /dev/fd/.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openbsd | Openbsd | 3.7 (including) | 3.7 (including) |
| Openbsd | Openbsd | 3.8 (including) | 3.8 (including) |
References
- ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.7/common/008_fd.patch
- http://secunia.com/advisories/18296
- http://securitytracker.com/id?1015437
- http://www.openbsd.org/errata37.html#fd
- http://www.osvdb.org/22231
- http://www.securityfocus.com/bid/16144
- ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.7/common/008_fd.patch
- http://secunia.com/advisories/18296
- http://securitytracker.com/id?1015437
- http://www.openbsd.org/errata37.html#fd
- http://www.osvdb.org/22231
- http://www.securityfocus.com/bid/16144