UBUNTU-CVE-2022-30256

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    UBUNTU-CVE-2022-30256

    Published: 19 Nov 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2022-30256
    Aliases:
    USN-6271-1

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2022-30256, https://maradns.samiam.org/security.html#CVE-2022-30256, https://maradns.samiam.org/, https://ubuntu.com/security/notices/USN-6271-1, https://www.cve.org/CVERecord?id=CVE-2022-30256

    Affected packages

    Package

    Name: maradns

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.13-1ubuntu0.1~esm1

    Affected versions

    2.0.11-1
    2.0.13-1

    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
    UBUNTU-CVE-2022-30256 | CVE-DB