National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-4528 Detail

Current Description

Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.

Source:  MITRE
View Analysis Description

Evaluator Description

Per: http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt "1.4.14 is released with the patch, but 1.4.14rc1 is vulnerable. http://www.unbound.net/downloads/unbound-1.4.14.tar.gz"

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
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 Third Party Advisory US Government Resource

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.09:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:0.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.3.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.3.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:1.4.12:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.4.13
 cpe:2.3:a:unbound:unbound:1.4.14:rc1:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-4528
NVD Published Date:
12/20/2011
NVD Last Modified:
11/06/2012