CVE-2009-4008

N/A

Published: June 2, 2011 at 08:00 PM UTC

Updated: June 16, 2026 at 11:12 PM UTC

1 product affected across 1 vendorUnbound

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Severity

N/A

Exploit prediction

EPSS 3%

Description

Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Unbound · Nlnetlabs

95%

v ≤ 1.4.30.0 0.09 0.1 0.10 0.11 0.2 0.3 0.4 0.5 0.6 0.7 0.7.1 0.7.2 0.8 1.0.0 1.0.1 1.0.2 1.1.0 1.1.1 1.2.0 1.2.1 1.3.0 1.3.1 1.3.2 1.3.3 1.3.4 1.4.0 1.4.1 1.4.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISC

Source: [email protected]

http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog

x_refsource_MISCPatch

Source: [email protected]

http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz

Vendor Advisoryx_refsource_DEBIAN

Source: [email protected]

http://www.debian.org/security/2011/dsa-2243

CVSS

5MEDIUM[email protected]

Confidentiality: NONE
Integrity: NONE
Availability: PARTIAL

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-399

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