CVE-2022-30699
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 rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten.
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 |