CVE-2009-3602

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2009-3602
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-10-13 10:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionUnbound 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.

Risk And Classification

Primary CVSS: v2.0 7.5 from [email protected]

AV:N/AC:L/Au:N/C:P/I:P/A:P

Problem Types: CWE-310 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nlnetlabs Unbound 0.0 All All All
Application Nlnetlabs Unbound 0.09 All All All
Application Nlnetlabs Unbound 0.1 All All All
Application Nlnetlabs Unbound 0.10 All All All
Application Nlnetlabs Unbound 0.11 All All All
Application Nlnetlabs Unbound 0.2 All All All
Application Nlnetlabs Unbound 0.3 All All All
Application Nlnetlabs Unbound 0.4 All All All
Application Nlnetlabs Unbound 0.5 All All All
Application Nlnetlabs Unbound 0.6 All All All
Application Nlnetlabs Unbound 0.7 All All All
Application Nlnetlabs Unbound 0.7.1 All All All
Application Nlnetlabs Unbound 0.7.2 All All All
Application Nlnetlabs Unbound 0.8 All All All
Application Nlnetlabs Unbound 1.0.0 All All All
Application Nlnetlabs Unbound 1.0.1 All All All
Application Nlnetlabs Unbound 1.0.2 All All All
Application Nlnetlabs Unbound 1.1.0 All All All
Application Nlnetlabs Unbound 1.1.1 All All All
Application Nlnetlabs Unbound 1.2.0 All All All
Application Nlnetlabs Unbound 1.2.1 All All All
Application Nlnetlabs Unbound 1.3.0 All All All
Application Nlnetlabs Unbound 1.3.1 All All All
Application Nlnetlabs Unbound 1.3.2 All All All
Application Nlnetlabs Unbound All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - CVE request: Unbound af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
oss-security - Re: CVE request: Unbound af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
[Unbound-users] Release of unbound 1.3.4 af854a3a-2127-422b-91ae-364da2661108 unbound.net Vendor Advisory
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
Unbound NSEC3 Signature Validation Bypass Security Issue - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Debian -- Security Information -- DSA-1963-1 unbound af854a3a-2127-422b-91ae-364da2661108 www.debian.org
osvdb.org/58836 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Debian update for unbound - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report