Vulnerability in Powerdns Recursor
CVE-2020-25829
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.065 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.065 · newest: 0.065 · change: 0.000
Affected products
- Powerdns Recursor
- openSUSE Backports Sle — versions 15.0
- openSUSE Leap — versions 15.1, 15.2
References
- docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html (Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202012-19 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25829?
- CVE-2020-25829 is a high-severity vulnerability in Powerdns Recursor. CVSS score: 7.5/10. Published 2020-10-16.
- How severe is CVE-2020-25829?
- High severity. CVSS v3 base score is 7.5 out of 10.