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    CVE-2022-30256

    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.

    Published:Nov 18, 2022
    Last Modified:Apr 29, 2025
    EPS:Nov 18, 2022
    EPSS Score:0.00402
    CVSS Score:7.5

    Affected Products

    Vendor
    Maradns
    Product
    Maradns

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-40719 (CVSS 7.5) — Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative names…
    CVE-2023-31137 (CVSS 7.5) — MaraDNS is open-source software that implements the Domain Name System (DNS). In version 3.5.0024 and prior, a…
    CVE-2012-1570 (CVSS 4.3) — The resolver in MaraDNS before 1.3.0.7.15 and 1.4.x before 1.4.12 overwrites cached server names and TTL value…
    CVE-2011-5055 (CVSS 5) — MaraDNS 1.3.07.12 and 1.4.08 computes hash values for DNS data without properly restricting the ability to tri…
    CVE-2012-0024 (CVSS 7.8) — MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data without restricting the abi…
    CVE-2011-5056 (CVSS 2.1) — The authoritative server in MaraDNS through 2.0.04 computes hash values for DNS data without restricting the a…
    CVE-2011-0520 (CVSS 7.5) — The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versio…
    CVE-2010-2444 (CVSS 4.3) — parse/Csv2_parse.c in MaraDNS 1.3.03, and other versions before 1.4.03, does not properly handle hostnames tha…
    CVE-2008-0061 (CVSS 5) — MaraDNS 1.0 before 1.0.41, 1.2 before 1.2.12.08, and 1.3 before 1.3.07.04 allows remote attackers to cause a d…
    CVE-2007-3115 (CVSS 7.8) — Multiple memory leaks in server/MaraDNS.c in MaraDNS before 1.2.12.06, and 1.3.x before 1.3.05, allow remote a…

    References

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High