ISC DHCP server 4.0 before 4.0.2, 4.1 before 4.1.2, and 4.2 before 4.2.0-P1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a DHCPv6 packet containing a Relay-Forward message without an address in the Relay-Forward link-address field.
| Software | From | Fixed in |
|---|---|---|
| isc / dhcp | 4.0 | 4.0.x |
| isc / dhcp | 4.0.0 | 4.0.0.x |
| isc / dhcp | 4.0.1 | 4.0.1.x |
| isc / dhcp | 4.0.1-b1 | 4.0.1-b1.x |
| isc / dhcp | 4.0.1-rc1 | 4.0.1-rc1.x |
| isc / dhcp | 4.1.0 | 4.1.0.x |
| isc / dhcp | 4.1.1 | 4.1.1.x |
| isc / dhcp | 4.1.1-b1 | 4.1.1-b1.x |
| isc / dhcp | 4.1.1-b2 | 4.1.1-b2.x |
| isc / dhcp | 4.1.1-b3 | 4.1.1-b3.x |
| isc / dhcp | 4.1.1-rc1 | 4.1.1-rc1.x |
| isc / dhcp | 4.2.0 | 4.2.0.x |
| isc / dhcp | 4.2.0-a1 | 4.2.0-a1.x |
| isc / dhcp | 4.2.0-a2 | 4.2.0-a2.x |
| isc / dhcp | 4.2.0-b1 | 4.2.0-b1.x |
| isc / dhcp | 4.2.0-b2 | 4.2.0-b2.x |
| isc / dhcp | 4.2.0-rc1 | 4.2.0-rc1.x |