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CVE-2022-27227

HIGHCVSS 7.5/10EPSS 4.91%

Last modified

CVE-2022-27227 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.. EPSS estimates a 4.91% chance of exploitation in the next 30 days.

Description

In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
4.91%

91.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
PowerdnsAuthoritative Server< 4.4.3
PowerdnsAuthoritative Server>= 4.5.0, < 4.5.4
PowerdnsAuthoritative Server>= 4.6.0, < 4.6.1
PowerdnsRecursor< 4.4.8
PowerdnsRecursor>= 4.5.0, < 4.5.8
PowerdnsRecursor>= 4.6.0, < 4.6.1
FedoraprojectFedora34
FedoraprojectFedora35
FedoraprojectFedora36

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-27227?
In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.
How severe is CVE-2022-27227?
CVE-2022-27227 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.91% probability of exploitation in the next 30 days.
How do I fix CVE-2022-27227?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-27227?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST