CVE-2016-2120
7.5 · HIGHOverview
CVE-2016-2120 is a high-severity vulnerability affecting powerdns authoritative. It was published on November 1, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. 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 PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
Remediation
Check the references section for vendor advisories and patches from powerdns. Update authoritative 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 | authoritative | 0 | Affected |
Frequently Asked Questions
What is CVE-2016-2120?
CVE-2016-2120 is a high-severity vulnerability affecting powerdns authoritative. It was published on November 1, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2016-2120?
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2016-2120?
Check the references section for vendor advisories and patches from powerdns. Update authoritative 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-2016-2120?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-2120 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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