An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-30256
- 2026-10-03 Alias added: GHSA-qqpw-wxfv-vfcg
References
More Maradns vulnerabilities
- TI-2023-14847 MaraDNS Integer Underflow Vulnerability in DNS Packet Decompression CVSS 3.1HIGH 7.5
- TI-2011-00447 The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and… CVSS 2.0HIGH 7.5
- TI-2012-00024 MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data… CVSS 2.0HIGH 7.8
- TI-2007-03013 Multiple memory leaks in server/MaraDNS.c in MaraDNS before 1.2.12.06, and 1.3.x before… CVSS 2.0HIGH 7.8
- TI-2004-00727 Multiple implementations of the DNS protocol, including (1) Poslib 1.0.2-1 and earlier as… CVSS 2.0MEDIUM 5.0
- TI-2008-00052 MaraDNS 1.0 before 1.0.41, 1.2 before 1.2.12.08, and 1.3 before 1.3.07.04 allows remote… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2022-30256 · CVE Program
- CVE-2022-30256 · NVD
- FIRST EPSS
- GHSA-qqpw-wxfv-vfcg · GitHub Advisory Database · CC BY 4.0
- CVE-2022-30256 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences