Upstream information
Description
In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service and possible remote code execution as a result of digesting DNSKEYs. A DNSKEY with an owner compression pointer to its own RDATA can overflow the digest buffer. Remote code execution is possible through attacker controlled data. An adversary can exploit the vulnerability by controlling a malicious zone and querying a vulnerable Unbound.Other Security Trackers
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 | 9.1 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red |
| Attack Vector | Network |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | High |
| Vulnerable System Integrity Impact | High |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | High |
| Subsequent System Integrity Impact | High |
| Subsequent System Availability Impact | High |
| CVSSv4 Version | 4.0 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 16:08:10 2026CVE page last modified: Thu Sep 17 16:08:10 2026