VDB
CVE-2020-25829
CVE-2020-25829
PUBLISHED
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).
EPSS 0.25% · 48.3th percentile
Risk Scores
EPSS Score
0.25%
48.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | pdns-recursor | 4.0.0~alpha2-2ubuntu0.1+esm1, 4.0.0~alpha2-2ubuntu0.1, 4.0.0~alpha2-2 |
| Ubuntu:Pro:18.04:LTS | pdns-recursor | 4.1.1-2ubuntu0.1~esm1, 0, 4.0.6-1 |
| Ubuntu:Pro:20.04:LTS | pdns-recursor | 4.2.1-1build2, 4.2.1-1ubuntu0.1~esm1, 4.2.1-1build1 |
Exploit Intelligence
Timeline
- Oct 12, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-25829 third-party-advisory
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-25829 third-party-advisory