National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4869 Detail

Description

validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528.

Source:  MITRE
Description Last Modified:  12/20/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html
http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt Patch Vendor Advisory
http://www.debian.org/security/2011/dsa-2370
http://www.kb.cert.org/vuls/id/209659 Patch US Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/71868

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.4:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.5:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.6:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.7:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.8:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.09:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.10:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:0.11:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.7:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.8:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.9:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.10:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:1.4.11:*:*:*:*:*:*:*
cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:*    versions up to (including) 1.4.12

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4869
NVD Published Date:
12/20/2011
NVD Last Modified:
08/28/2017