CVE-2020-12667 PUBLISHED

Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.

EPSS 1.02% · 77.1th percentile

Risk Scores

EPSS Score
1.02%
77.1th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:16.04:LTSknot-resolver1.0.0~beta3-1, 1.0.0~beta3-1ubuntu0.1~esm1, 0
Ubuntu:20.04:LTSknot-resolver3.2.1-3ubuntu1, 0, 3.2.1-3ubuntu2
Ubuntu:Pro:18.04:LTSknot-resolver2.1.1-1, 2.1.1-1ubuntu0.1~esm2, 0

Timeline

References

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