CVE-2011-4869

Severity Score

7.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

validator/val_nsec3.c en Unbound antes de v1.4.13p2, no realiza adecuadamente el postprocesamiento de la prueba para zonas NSEC3-signed, lo que permite a servidores DNS remotos provocar una denegación de servicio (caída del demonio) a través de una respuesta con formato incorrecto que carece de registros NSEC3 esperados. Una vulnerabilidad diferente de CVE-2011-4528.

*Credits: N/A

CVSS Scores

NISTv2 7.8

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-12-20 CVE Reserved
2011-12-20 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (8)

URL	Tag	Source
http://osvdb.org/77910	Vdb Entry
http://secunia.com/advisories/47326	Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/71868	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt	2017-08-29
http://www.kb.cert.org/vuls/id/209659	2017-08-29

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html	2017-08-29
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html	2017-08-29
http://www.debian.org/security/2011/dsa-2370	2017-08-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				<= 1.4.12 Search vendor "Unbound" for product "Unbound" and version " <= 1.4.12"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.0 Search vendor "Unbound" for product "Unbound" and version "0.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.1 Search vendor "Unbound" for product "Unbound" and version "0.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.2 Search vendor "Unbound" for product "Unbound" and version "0.2"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.3 Search vendor "Unbound" for product "Unbound" and version "0.3"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.4 Search vendor "Unbound" for product "Unbound" and version "0.4"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.5 Search vendor "Unbound" for product "Unbound" and version "0.5"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.6 Search vendor "Unbound" for product "Unbound" and version "0.6"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.7 Search vendor "Unbound" for product "Unbound" and version "0.7"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.7.1 Search vendor "Unbound" for product "Unbound" and version "0.7.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.7.2 Search vendor "Unbound" for product "Unbound" and version "0.7.2"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.8 Search vendor "Unbound" for product "Unbound" and version "0.8"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.09 Search vendor "Unbound" for product "Unbound" and version "0.09"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.10 Search vendor "Unbound" for product "Unbound" and version "0.10"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				0.11 Search vendor "Unbound" for product "Unbound" and version "0.11"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.0.0 Search vendor "Unbound" for product "Unbound" and version "1.0.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.0.1 Search vendor "Unbound" for product "Unbound" and version "1.0.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.0.2 Search vendor "Unbound" for product "Unbound" and version "1.0.2"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.1.0 Search vendor "Unbound" for product "Unbound" and version "1.1.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.1.1 Search vendor "Unbound" for product "Unbound" and version "1.1.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.2.0 Search vendor "Unbound" for product "Unbound" and version "1.2.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.2.1 Search vendor "Unbound" for product "Unbound" and version "1.2.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.3.0 Search vendor "Unbound" for product "Unbound" and version "1.3.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.3.1 Search vendor "Unbound" for product "Unbound" and version "1.3.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.3.2 Search vendor "Unbound" for product "Unbound" and version "1.3.2"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.3.3 Search vendor "Unbound" for product "Unbound" and version "1.3.3"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.3.4 Search vendor "Unbound" for product "Unbound" and version "1.3.4"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.0 Search vendor "Unbound" for product "Unbound" and version "1.4.0"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.1 Search vendor "Unbound" for product "Unbound" and version "1.4.1"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.2 Search vendor "Unbound" for product "Unbound" and version "1.4.2"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.3 Search vendor "Unbound" for product "Unbound" and version "1.4.3"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.4 Search vendor "Unbound" for product "Unbound" and version "1.4.4"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.5 Search vendor "Unbound" for product "Unbound" and version "1.4.5"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.6 Search vendor "Unbound" for product "Unbound" and version "1.4.6"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.7 Search vendor "Unbound" for product "Unbound" and version "1.4.7"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.8 Search vendor "Unbound" for product "Unbound" and version "1.4.8"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.9 Search vendor "Unbound" for product "Unbound" and version "1.4.9"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.10 Search vendor "Unbound" for product "Unbound" and version "1.4.10"		-		Affected
Unbound Search vendor "Unbound"		Unbound Search vendor "Unbound" for product "Unbound"				1.4.11 Search vendor "Unbound" for product "Unbound" and version "1.4.11"		-		Affected