CVE-2020-25829
Last modified
CVE-2020-25829 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 6.46% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Powerdns | Recursor | < 4.1.18 | — |
| Powerdns | Recursor | >= 4.2.0, < 4.2.5 | — |
| Powerdns | Recursor | >= 4.3.0, < 4.3.5 | — |
| Opensuse | Backports Sle | 15.0 | Sp1 |
| Opensuse | Leap | 15.1 | — |
| Opensuse | Leap | 15.2 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.htmlThird Party Advisory
- https://security.gentoo.org/glsa/202012-19Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.htmlThird Party Advisory
- https://security.gentoo.org/glsa/202012-19Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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