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CVE-2022-30256

Publication date 19 November 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
maradns 23.04 lunar
Fixed 2.0.13-1.4+deb11u1build0.23.04.1
22.10 kinetic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 2.0.13-1.4+deb11u1build0.22.04.1
20.04 LTS focal
Fixed 2.0.13-1.4+deb11u1build0.20.04.1
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-6271-1
    • MaraDNS vulnerabilities
    • 3 August 2023

Other references