A flaw in query-handling code can cause named to exit prematurely with an assertion failure when:
nxdomain-redirect <domain>; is configured, andThe product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Active_iq_unified_manager | Netapp | - (including) | - (including) |
| Fedora | Fedoraproject | 38 (including) | 38 (including) |
| Fedora | Fedoraproject | 39 (including) | 39 (including) |
| Red Hat Enterprise Linux 8 | RedHat | bind9.16-32:9.16.23-0.16.el8_9.2 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | bind9.16-32:9.16.23-0.7.el8_6.5 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | bind9.16-32:9.16.23-0.14.el8_8.4 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind-32:9.16.23-14.el9_3.4 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind-dyndb-ldap-0:11.9-8.el9_3.3 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind-32:9.16.23-18.el9_4.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | bind-dyndb-ldap-0:11.9-9.el9_4 | * |
| Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | bind-32:9.16.23-1.el9_0.5 | * |
| Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | bind-dyndb-ldap-0:11.9-7.el9_0.1 | * |
| Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | bind-32:9.16.23-11.el9_2.4 | * |
| Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | bind-dyndb-ldap-0:11.9-8.el9_2.2 | * |
| Bind9 | Ubuntu | bionic | * |
| Bind9 | Ubuntu | devel | * |
| Bind9 | Ubuntu | focal | * |
| Bind9 | Ubuntu | jammy | * |
| Bind9 | Ubuntu | mantic | * |
| Bind9 | Ubuntu | noble | * |
| Bind9 | Ubuntu | oracular | * |
| Bind9 | Ubuntu | trusty | * |
| Bind9 | Ubuntu | upstream | * |
| Bind9 | Ubuntu | xenial | * |
While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.