Vulnerability Description
An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Powerdns | Recursor | < 4.1.18 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.htmlThird Party Advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07Vendor Advisory
- https://security.gentoo.org/glsa/202012-19Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.htmlThird Party Advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07Vendor Advisory
- https://security.gentoo.org/glsa/202012-19Third Party Advisory
FAQ
What is CVE-2020-25829?
CVE-2020-25829 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSE...
How severe is CVE-2020-25829?
CVE-2020-25829 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25829?
Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Recursor, Opensuse Backports Sle, Opensuse Leap.