The fr_dhcp_decode function in lib/dhcp.c in FreeRADIUS 2.1.9, in certain non-default builds, does not properly handle the DHCP Relay Agent Information option, which allows remote attackers to cause a denial of service (infinite loop and daemon outage) via a packet that has more than one sub-option. NOTE: some of these details are obtained from third party information.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freeradius | Freeradius | 2.1.9 (including) | 2.1.9 (including) |
| Freeradius | Ubuntu | jaunty | * |
| Freeradius | Ubuntu | karmic | * |
| Freeradius | Ubuntu | maverick | * |
| Freeradius | Ubuntu | upstream | * |