CVE-2022-30256
maradns - security update
7.5
HIGH
CVSS 3.1
EPSS 0.66%
Description
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.
How to fix CVE-2022-30256
To remediate CVE-2022-30256, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.13-1.4+deb11u1 or later
- —upgrade to 2.0.13-1.2+deb10u1 or later
- —upgrade to 2.0.13-1.4+deb11u1 or later
Is CVE-2022-30256 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.0.13-1.4+deb11u1
- from 0, < 2.0.13-1.2+deb10u1
- from 0, < 2.0.13-1.4+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |