Description
Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
Published: 2009-10-13
Score: 7.5 High
EPSS: 1.6% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-1963-1 New unbound packages fix DNSSEC validation
EUVD EUVD EUVD-2009-3583 Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
History

No history.

Subscriptions

Nlnetlabs Unbound
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T06:31:10.455Z

Reserved: 2009-10-09T00:00:00.000Z

Link: CVE-2009-3602

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-10-13T10:30:00.657

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-3602

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses