Upstream information
Description
In NLnet Labs Unbound 1.13.2 up to and including 1.26.1, a vulnerability in ZONEMD configured zones (zonemd-check: yes) which are located below (but not at) a trust anchor allow for an attack window where (tampered with) zone contents are served (or stored to disk) prior to the ZONEMD integrity check. This is caused by the needed DS/DNSKEY asynchronous resolution that needs to happen before the ZONEMD check completes. If a zonefile is written to disk (zonefile: option) while the ZONEMD check failed, the tampered data are reloaded on startup and available until ZONEMD verification concludes again. If verification fails, the data is not served any more but still persists on disk for future reloads.SUSE information
Overall state of this security issue: New
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (NLnet Labs) |
|---|---|
| Base Score | 4.4 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | High |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | High |
| Availability Impact | None |
| CVSSv3 Version | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | unbound | Analysis |
| SUSE Linux Enterprise Micro 5.5 | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | unbound | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP7 | unbound | Analysis |
| SUSE Linux Enterprise Server 16.0 | unbound | Analysis |
| SUSE Linux Enterprise Server 16.1 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP applications 16.0 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP applications 16.1 | unbound | Analysis |
| SUSE Linux Micro 6.0 | unbound | Analysis |
| SUSE Linux Micro 6.1 | unbound | Analysis |
| SUSE Linux Micro 6.2 | unbound | Analysis |
| openSUSE Leap 16.0 | unbound | Analysis |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP4-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP5-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP6 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP6-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | unbound | Analysis |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | unbound | Analysis |
| SUSE Enterprise Storage 6 | unbound | Analysis |
| SUSE Enterprise Storage 7 | unbound | Analysis |
| SUSE Enterprise Storage 7.1 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP1 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise Desktop 15 SP6 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | unbound | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | unbound | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | unbound | Analysis |
| SUSE Linux Enterprise Real Time 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise Real Time 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise Real Time 15 SP4 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP1 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP1-BCL | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP1-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP2-BCL | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP2-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP3 | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP3-BCL | unbound | Analysis |
| SUSE Linux Enterprise Server 15 SP3-LTSS | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | unbound | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | unbound | Analysis |
| SUSE Manager Proxy 4.0 | unbound | Analysis |
| SUSE Manager Proxy 4.1 | unbound | Analysis |
| SUSE Manager Proxy 4.2 | unbound | Analysis |
| SUSE Manager Proxy 4.3 | unbound | Analysis |
| SUSE Manager Proxy LTS 4.3 | unbound | Analysis |
| SUSE Manager Retail Branch Server 4.0 | unbound | Analysis |
| SUSE Manager Retail Branch Server 4.1 | unbound | Analysis |
| SUSE Manager Retail Branch Server 4.2 | unbound | Analysis |
| SUSE Manager Retail Branch Server 4.3 | unbound | Analysis |
| SUSE Manager Retail Branch Server LTS 4.3 | unbound | Analysis |
| SUSE Manager Server 4.0 | unbound | Analysis |
| SUSE Manager Server 4.1 | unbound | Analysis |
| SUSE Manager Server 4.2 | unbound | Analysis |
| SUSE Manager Server 4.3 | unbound | Analysis |
| SUSE Manager Server LTS 4.3 | unbound | Analysis |
| openSUSE Leap 15.3 | unbound | Analysis |
| openSUSE Leap 15.4 | unbound | Analysis |
| openSUSE Leap 15.5 | unbound | Analysis |
| openSUSE Leap 15.6 | unbound | Analysis |
SUSE Timeline for this CVE
CVE page created: Thu Sep 17 16:07:23 2026CVE page last modified: Thu Sep 17 16:07:23 2026