CVE-2023-26437

Deterred spoofing attempts can lead to authoritative servers being marked unavailable

Description

Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.

Remediation

Solution:

  • Upgrade to PowerDNS Recursor 4.6.6, 4.7.5 or 4.8.4.

Category

3.4
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.00%
Vendor Advisory powerdns.com
Affected: PowerDNS Recursor
Published at:
Updated at:

References

Link Tags
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2023-02.html vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CN7VMRYKZHG2UDUAK326LXD3JY7NO3LR/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHPD6SIQOG7245GXFQHPUEI4AZ6Y3KD6/

Frequently Asked Questions

What is the severity of CVE-2023-26437?
CVE-2023-26437 has been scored as a low severity vulnerability.
How to fix CVE-2023-26437?
To fix CVE-2023-26437: Upgrade to PowerDNS Recursor 4.6.6, 4.7.5 or 4.8.4.
Is CVE-2023-26437 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-26437 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-26437?
CVE-2023-26437 affects PowerDNS Recursor.
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