CVE-2022-30698
Fixed in a distro release EPSS 1%
NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information.
Products: NLnet Labs unbound
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | python3-unbound | 1.16.2-2.el8 |
| AlmaLinux 8 | unbound | 1.16.2-2.el8 |
| AlmaLinux 8 | unbound-devel | 1.16.2-2.el8 |
| AlmaLinux 8 | unbound-libs | 1.16.2-2.el8 |
| AlmaLinux 9 | python3-unbound | 1.16.2-2.el9 |
| AlmaLinux 9 | unbound | 1.16.2-2.el9 |
| AlmaLinux 9 | unbound-devel | 1.16.2-2.el9 |
| AlmaLinux 9 | unbound-libs | 1.16.2-2.el9 |
| Alpine 3.17 | unbound | 1.16.2-r0 |
| Alpine 3.18 | unbound | 1.16.2-r0 |
| Alpine 3.19 | unbound | 1.16.2-r0 |
| Alpine 3.20 | unbound | 1.16.2-r0 |
| Alpine 3.21 | unbound | 1.16.2-r0 |
| Alpine 3.22 | unbound | 1.16.2-r0 |
| Alpine 3.23 | unbound | 1.16.2-r0 |
| Alpine 3.24 | unbound | 1.16.2-r0 |
| Amazon Linux 2 | python2-unbound | 1.7.3-15.amzn2.0.5 |
| Amazon Linux 2 | python3-unbound | 1.7.3-15.amzn2.0.5 |
| Amazon Linux 2 | unbound | 1.7.3-15.amzn2.0.5 |
| Amazon Linux 2 | unbound-devel | 1.7.3-15.amzn2.0.5 |
| Amazon Linux 2 | unbound-libs | 1.7.3-15.amzn2.0.5 |
| Amazon Linux 2023 | python3-unbound | 1.16.3-2.amzn2023.0.1 |
| Amazon Linux 2023 | unbound | 1.16.3-2.amzn2023.0.1 |
| Amazon Linux 2023 | unbound-anchor | 1.16.3-2.amzn2023.0.1 |
| Amazon Linux 2023 | unbound-devel | 1.16.3-2.amzn2023.0.1 |
| Amazon Linux 2023 | unbound-libs | 1.16.3-2.amzn2023.0.1 |
| Amazon Linux 2023 | unbound-utils | 1.16.3-2.amzn2023.0.1 |
| Debian 10 | unbound | 1.9.0-2+deb10u3 |
| Debian 12 | unbound | 1.16.2-1 |
| Debian 13 | unbound | 1.16.2-1 |
| Debian 14 | unbound | 1.16.2-1 |
| Red Hat Enterprise Linux 8 | python3-unbound | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | python3-unbound-debuginfo | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound-debuginfo | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound-debugsource | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound-devel | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound-libs | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 8 | unbound-libs-debuginfo | 0:1.16.2-2.el8 |
| Red Hat Enterprise Linux 9 | python3-unbound | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | python3-unbound-debuginfo | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound-debuginfo | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound-debugsource | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound-devel | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound-libs | 0:1.16.2-2.el9 |
| Red Hat Enterprise Linux 9 | unbound-libs-debuginfo | 0:1.16.2-2.el9 |
| Red Hat rhel eus 8.6 | python3-unbound | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | python3-unbound-debuginfo | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound-debuginfo | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound-debugsource | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound-devel | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound-libs | 0:1.7.3-17.el8_6.5 |
| Red Hat rhel eus 8.6 | unbound-libs-debuginfo | 0:1.7.3-17.el8_6.5 |
| Rocky Linux 8 | unbound | 0:1.16.2-2.el8 |
| Rocky Linux 9 | unbound | 0:1.16.2-2.el9 |
| SUSE Enterprise Storage 7.1 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Micro 5.5 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | unbound | 1.20.0-150600.23.3.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | unbound | 1.20.0-150600.23.3.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Server 15 SP3-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Manager Proxy 4.3 | unbound | 1.20.0-150100.10.13.1 |
| SUSE Manager Server 4.3 | unbound | 1.20.0-150100.10.13.1 |
| Ubuntu 18.04 LTS | unbound | 1.6.7-1ubuntu2.5 |
| Ubuntu 20.04 LTS | unbound | 1.9.4-2ubuntu1.3 |
| Ubuntu 22.04 LTS | unbound | 1.13.1-1ubuntu5.1 |
| Ubuntu Pro 14.04 LTS | unbound | no fix |
| Ubuntu Pro 16.04 LTS | unbound | no fix |
| openSUSE Leap 15.5 | unbound | 1.20.0-150100.10.13.1 |
| openSUSE Leap 15.6 | unbound | 1.20.0-150600.23.3.1 |
| openSUSE Tumbleweed | unbound | 1.16.2-1.1 |