Resource management error in MaraDNS - CVE-2022-30256

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Main Vulnerability Database Vulnerabilities #VU77839

Resource management error in MaraDNS - CVE-2022-30256

Published: June 30, 2023


Vulnerability identifier: #VU77839
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-30256
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass expected security restrictions.

The vulnerability exists due to the way MaraDNS handles cached domain names. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains.


Affected software

MaraDNS
Debian Linux
Ubuntu
Fedora
maradns-zoneserver (Ubuntu package)
maradns-deadwood (Ubuntu package)
duende (Ubuntu package)
maradns (Ubuntu package)
maradns (Debian package)
maradns

How to mitigate CVE-2022-30256

Install updates from vendor's website.

MaraDNS - addressed in versions 3.4.03, 3.5.0022
maradns-zoneserver (Ubuntu package) - addressed in versions Ubuntu Pro, 2.0.13-1.4+deb11u1build0.20.04.1, 2.0.13-1.4+deb11u1build0.22.04.1, 2.0.13-1.4+deb11u1build0.23.04.1
maradns-deadwood (Ubuntu package) - addressed in versions Ubuntu Pro, 2.0.13-1.4+deb11u1build0.20.04.1, 2.0.13-1.4+deb11u1build0.22.04.1, 2.0.13-1.4+deb11u1build0.23.04.1
duende (Ubuntu package) - addressed in versions Ubuntu Pro, 2.0.13-1.4+deb11u1build0.20.04.1, 2.0.13-1.4+deb11u1build0.22.04.1, 2.0.13-1.4+deb11u1build0.23.04.1
maradns (Ubuntu package) - addressed in versions Ubuntu Pro, 2.0.13-1.4+deb11u1build0.20.04.1, 2.0.13-1.4+deb11u1build0.22.04.1, 2.0.13-1.4+deb11u1build0.23.04.1
maradns (Debian package) - update to 2.0.13-1.4+deb11u1
maradns - addressed in versions 3.5.0036-1.fc37, 3.5.0036-1.fc38, 3.5.0036-1.fc39

External References

Related Security Bulletins