CVE-2022-30256: High severity maradns project maradns vulnerability
An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-30256?
CVE-2022-30256 is considered high severity due to its potential for widespread exploitation affecting domain name resolution.
What are the affected versions for CVE-2022-30256?
CVE-2022-30256 affects MaraDNS versions prior to 3.5.0022, specifically those below 3.5.0 and within certain Ubuntu and Debian releases.
How do I fix CVE-2022-30256?
To fix CVE-2022-30256, upgrade MaraDNS to version 2.0.13-1.4+ or later for the affected Ubuntu and Debian distributions.
What type of vulnerability is CVE-2022-30256?
CVE-2022-30256 is a domain name resolution vulnerability that allows the resolution of revoked domain names.
Who is impacted by CVE-2022-30256?
Users and systems utilizing vulnerable versions of MaraDNS, especially on supported Ubuntu and Debian systems, are impacted by CVE-2022-30256.