CVE-2016-7069
5.9 · MEDIUMOverview
CVE-2016-7069 is a medium-severity vulnerability affecting powerdns dnsdist. It was published on September 11, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash.
Remediation
Check the references section for vendor advisories and patches from powerdns. Update dnsdist to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| powerdns | dnsdist | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2016-7069?
CVE-2016-7069 is a medium-severity vulnerability affecting powerdns dnsdist. It was published on September 11, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
How severe is CVE-2016-7069?
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2016-7069?
Check the references section for vendor advisories and patches from powerdns. Update dnsdist to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2016-7069?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-7069 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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