CVE-2022-30256

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.38%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory samiam.org Vendor Advisory samiam.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://maradns.samiam.org/ product vendor advisory
https://maradns.samiam.org/security.html#CVE-2022-30256 vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NB7LDZM5AGWC5BHHQHW6CP5OFNBBKFOQ/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3VSMLJX25MXGQ6A7UPOGK7VPUVDESPHL/ vendor advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00019.html mailing list
https://www.debian.org/security/2023/dsa-5441 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-30256?
CVE-2022-30256 has been scored as a high severity vulnerability.
How to fix CVE-2022-30256?
To fix CVE-2022-30256, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-30256 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-30256 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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