OpenBSD 2.9 through 3.1 allows local users to cause a denial of service (resource exhaustion) and gain root privileges by filling the kernels file descriptor table and closing file descriptors 0, 1, or 2 before executing a privileged process, which is not properly handled when OpenBSD fails to open an alternate descriptor.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openbsd | Openbsd | 2.9 (including) | 2.9 (including) |
| Openbsd | Openbsd | 3.0 (including) | 3.0 (including) |
| Openbsd | Openbsd | 3.1 (including) | 3.1 (including) |
References
- http://online.securityfocus.com/archive/1/271702
- http://www.iss.net/security_center/static/9048.php
- http://www.kb.cert.org/vuls/id/314963
- http://www.openbsd.org/errata.html#fdalloc2
- http://www.osvdb.org/5114
- http://www.osvdb.org/5715
- http://www.securityfocus.com/bid/4708
- http://online.securityfocus.com/archive/1/271702
- http://www.iss.net/security_center/static/9048.php
- http://www.kb.cert.org/vuls/id/314963
- http://www.openbsd.org/errata.html#fdalloc2
- http://www.osvdb.org/5114
- http://www.osvdb.org/5715
- http://www.securityfocus.com/bid/4708