The get_option function in dhcpcd 4.0.0 through 6.x before 6.4.3 allows remote DHCP servers to cause a denial of service by resetting the DHO_OPTIONSOVERLOADED option in the (1) bootfile or (2) servername section, which triggers the option to be processed again.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dhcpcd | Dhcpcd_project | 4.0.0 (including) | 4.0.0 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-alpha1 (including) | 4.0.0-alpha1 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-alpha2 (including) | 4.0.0-alpha2 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-alpha3 (including) | 4.0.0-alpha3 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta1 (including) | 4.0.0-beta1 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta2 (including) | 4.0.0-beta2 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta3 (including) | 4.0.0-beta3 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta4 (including) | 4.0.0-beta4 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta5 (including) | 4.0.0-beta5 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta6 (including) | 4.0.0-beta6 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta7 (including) | 4.0.0-beta7 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta8 (including) | 4.0.0-beta8 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-beta9 (including) | 4.0.0-beta9 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-rc1 (including) | 4.0.0-rc1 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-rc2 (including) | 4.0.0-rc2 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-rc3 (including) | 4.0.0-rc3 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-rc4 (including) | 4.0.0-rc4 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.0-rc5 (including) | 4.0.0-rc5 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.1 (including) | 4.0.1 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.2 (including) | 4.0.2 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.3 (including) | 4.0.3 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.4 (including) | 4.0.4 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.5 (including) | 4.0.5 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.6 (including) | 4.0.6 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.7 (including) | 4.0.7 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.10 (including) | 4.0.10 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.11 (including) | 4.0.11 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.12 (including) | 4.0.12 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.13 (including) | 4.0.13 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.14 (including) | 4.0.14 (including) |
| Dhcpcd | Dhcpcd_project | 4.0.15 (including) | 4.0.15 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.0 (including) | 5.0.0 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.1 (including) | 5.0.1 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.3 (including) | 5.0.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.4 (including) | 5.0.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.6 (including) | 5.0.6 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.7 (including) | 5.0.7 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.8 (including) | 5.0.8 (including) |
| Dhcpcd | Dhcpcd_project | 5.0.9 (including) | 5.0.9 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.0 (including) | 5.1.0 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.1 (including) | 5.1.1 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.2 (including) | 5.1.2 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.3 (including) | 5.1.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.4 (including) | 5.1.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.1.5 (including) | 5.1.5 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.0 (including) | 5.2.0 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.1 (including) | 5.2.1 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.3 (including) | 5.2.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.4 (including) | 5.2.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.5 (including) | 5.2.5 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.6 (including) | 5.2.6 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.7 (including) | 5.2.7 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.8 (including) | 5.2.8 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.9 (including) | 5.2.9 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.10 (including) | 5.2.10 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.11 (including) | 5.2.11 (including) |
| Dhcpcd | Dhcpcd_project | 5.2.12 (including) | 5.2.12 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.0 (including) | 5.5.0 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.1 (including) | 5.5.1 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.1-test1 (including) | 5.5.1-test1 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.2 (including) | 5.5.2 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.3 (including) | 5.5.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.4 (including) | 5.5.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.5 (including) | 5.5.5 (including) |
| Dhcpcd | Dhcpcd_project | 5.5.6 (including) | 5.5.6 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.0 (including) | 5.6.0 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.1 (including) | 5.6.1 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.2 (including) | 5.6.2 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.3 (including) | 5.6.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.4 (including) | 5.6.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.5 (including) | 5.6.5 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.6 (including) | 5.6.6 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.7 (including) | 5.6.7 (including) |
| Dhcpcd | Dhcpcd_project | 5.6.8 (including) | 5.6.8 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.2 (including) | 5.99.2 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.3 (including) | 5.99.3 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.4 (including) | 5.99.4 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.5 (including) | 5.99.5 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.6 (including) | 5.99.6 (including) |
| Dhcpcd | Dhcpcd_project | 5.99.7 (including) | 5.99.7 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.0 (including) | 6.0.0 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.1 (including) | 6.0.1 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.2 (including) | 6.0.2 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.3 (including) | 6.0.3 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.4 (including) | 6.0.4 (including) |
| Dhcpcd | Dhcpcd_project | 6.0.5 (including) | 6.0.5 (including) |
| Dhcpcd | Dhcpcd_project | 6.1.0 (including) | 6.1.0 (including) |
| Dhcpcd | Dhcpcd_project | 6.2.0 (including) | 6.2.0 (including) |
| Dhcpcd | Dhcpcd_project | 6.2.1 (including) | 6.2.1 (including) |
| Dhcpcd | Dhcpcd_project | 6.3.0 (including) | 6.3.0 (including) |
| Dhcpcd | Dhcpcd_project | 6.3.1 (including) | 6.3.1 (including) |
| Dhcpcd | Dhcpcd_project | 6.3.2 (including) | 6.3.2 (including) |
| Dhcpcd | Dhcpcd_project | 6.4.0 (including) | 6.4.0 (including) |
| Dhcpcd | Dhcpcd_project | 6.4.1 (including) | 6.4.1 (including) |
| Dhcpcd | Dhcpcd_project | 6.4.2 (including) | 6.4.2 (including) |
| Dhcpcd5 | Ubuntu | precise | * |
| Dhcpcd5 | Ubuntu | trusty | * |
| Dhcpcd5 | Ubuntu | upstream | * |
| Dhcpcd5 | Ubuntu | utopic | * |
| Dhcpcd5 | Ubuntu | vivid | * |