The kernel in FreeBSD 6.3 through 7.0 on amd64 platforms can make an extra swapgs call after a General Protection Fault (GPF), which allows local users to gain privileges by triggering a GPF during the kernels return from (1) an interrupt, (2) a trap, or (3) a system call.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freebsd | Freebsd | 6.3 (including) | 6.3 (including) |
| Freebsd | Freebsd | 7.0 (including) | 7.0 (including) |
References
- http://secunia.com/advisories/31743
- http://security.freebsd.org/advisories/FreeBSD-SA-08:07.amd64.asc
- http://www.securityfocus.com/bid/31003
- http://www.securitytracker.com/id?1020815
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44905
- http://secunia.com/advisories/31743
- http://security.freebsd.org/advisories/FreeBSD-SA-08:07.amd64.asc
- http://www.securityfocus.com/bid/31003
- http://www.securitytracker.com/id?1020815
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44905