What’s Vulnerable › Vulnerabilities

CVE-2018-1110

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-30 · updated 2026-06-17
• Weakness: CWE-20

Description

A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.

Affected products

• CZ.NIC knot-resolver: before 2.3.0 — fixed in 2.3.0

How to fix

Upgrade to a fixed version: CZ.NIC knot-resolver 2.3.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1944328
• https://www.knot-resolver.cz/2018-04-23-knot-resolver-2.3.0.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1944328
• https://www.knot-resolver.cz/2018-04-23-knot-resolver-2.3.0.html

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