It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure. This issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.32-S1.
Weakness
The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary’s influence is “asymmetric.”
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | RedHat | bind-32:9.8.2-0.68.rc1.el6_10.15 | * |
| Red Hat Enterprise Linux 7.7 Advanced Update Support | RedHat | bind-32:9.11.4-9.P2.el7_7.8 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | bind-32:9.11.4-26.P2.el7_9.18 | * |
| Red Hat Enterprise Linux 8 | RedHat | bind-32:9.11.36-16.el8_10.4 | * |
| Red Hat Enterprise Linux 8 | RedHat | bind9.16-32:9.16.23-0.22.el8_10.2 | * |
| Red Hat Enterprise Linux 8 | RedHat | bind-32:9.11.36-16.el8_10.4 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | bind-32:9.11.13-6.el8_2.10 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | bind-32:9.11.26-4.el8_4.7 | * |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | bind-32:9.11.26-4.el8_4.7 | * |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | bind-32:9.11.26-4.el8_4.7 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | bind9.16-32:9.16.23-0.7.el8_6.8 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | bind-32:9.11.36-3.el8_6.10 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | bind9.16-32:9.16.23-0.7.el8_6.8 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | bind-32:9.11.36-3.el8_6.10 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | bind9.16-32:9.16.23-0.7.el8_6.8 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | bind-32:9.11.36-3.el8_6.10 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | bind-32:9.11.36-8.el8_8.7 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | bind9.16-32:9.16.23-0.14.el8_8.6 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind9.18-32:9.18.29-1.el9_5.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind-32:9.16.23-24.el9_5.3 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | bind-32:9.16.23-1.el9_0.10 | * |
| Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | bind-32:9.16.23-11.el9_2.8 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | bind-32:9.16.23-18.el9_4.9 | * |
| Red Hat OpenShift Container Platform 4.12 | RedHat | rhcos-412.86.202503052321-0 | * |
| Red Hat OpenShift Container Platform 4.14 | RedHat | rhcos-414.92.202503100617-0 | * |
| Red Hat OpenShift Container Platform 4.15 | RedHat | rhcos-415.92.202503060749-0 | * |
| Red Hat OpenShift Container Platform 4.16 | RedHat | rhcos-416.94.202502260030-0 | * |
| Red Hat OpenShift Container Platform 4.17 | RedHat | rhcos-417.94.202502251300-0 | * |
| Red Hat OpenShift Container Platform 4.18 | RedHat | rhcos-418.94.202504080525-0 | * |
| Red Hat OpenShift AI 2.18 | RedHat | rhoai/odh-training-operator-rhel8:sha256:0a75ac726d1a35690d4f1dddc06a1473ebd563a032c8d08afbfa4d05aa5cc26e | * |
| Bind9 | Ubuntu | devel | * |
| Bind9 | Ubuntu | esm-infra/bionic | * |
| Bind9 | Ubuntu | esm-infra/focal | * |
| Bind9 | Ubuntu | focal | * |
| Bind9 | Ubuntu | jammy | * |
| Bind9 | Ubuntu | noble | * |
| Bind9 | Ubuntu | oracular | * |
| Bind9 | Ubuntu | plucky | * |
| Bind9 | Ubuntu | questing | * |
| Bind9 | Ubuntu | upstream | * |
| Bind9-libs | Ubuntu | focal | * |
| Isc-dhcp | Ubuntu | oracular | * |
| Isc-dhcp | Ubuntu | plucky | * |