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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
VendorProductVersion
powerdnsrecursor
𝑥
< 4.1.18
powerdnsrecursor
4.2.0 ≤
𝑥
< 4.2.5
powerdnsrecursor
4.3.0 ≤
𝑥
< 4.3.5
opensusebackports_sle
15.0:sp1
opensusebackports_sle
15.0:sp2
opensuseleap
15.1
opensuseleap
15.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pdns-recursor
bullseye
4.4.2-3
fixed
buster
no-dsa
bookworm
4.8.8-1
fixed
bookworm (security)
4.8.8-1
fixed
sid
5.0.9-1
fixed
trixie
5.0.9-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pdns-recursor
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne