Unbound up to 1.4.14 DNS Server resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Unbound and classified as problematic. The impacted element is an unknown function of the component DNS Server. Executing a manipulation can lead to resource management. This vulnerability is registered as CVE-2011-4528. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Unbound. This vulnerability affects an unknown code of the component DNS Server. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

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.

The weakness was published 12/20/2011 as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability was named CVE-2011-4528 since 11/22/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 71120 (GLSA-201311-18 : Unbound: Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 1.1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71868), Tenable (71120), SecurityFocus (BID 51115†), OSVDB (77909†) and Secunia (SA47326†). Similar entry is available at VDB-59773. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 71120
Nessus Name: GLSA-201311-18 : Unbound: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70689
OpenVAS Name: Debian Security Advisory DSA 2370-1 (unbound)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unbound 1.1.0

Timelineinfo

11/22/2011 🔍
12/19/2011 +27 days 🔍
12/20/2011 +1 days 🔍
12/20/2011 +0 days 🔍
12/20/2011 +0 days 🔍
12/23/2011 +3 days 🔍
12/26/2011 +3 days 🔍
11/29/2013 +704 days 🔍
03/23/2015 +479 days 🔍
08/08/2024 +3426 days 🔍

Sourcesinfo

Advisory: dsa-2370
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4528 (🔍)
GCVE (CVE): GCVE-0-2011-4528
GCVE (VulDB): GCVE-100-59770

OVAL: 🔍

CERT: 🔍
X-Force: 71868
SecurityFocus: 51115 - Unbound Multiple Denial of Service Vulnerabilities
Secunia: 47326 - Debian update for unbound, Moderately Critical
OSVDB: 77909
Vulnerability Center: 34115 - Unbound before 1.4.13p2 Remote DoS Vulnerability via a Crafted DNS Response, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 08/08/2024 08:47
Changes: 03/23/2015 16:50 (64), 04/09/2017 13:06 (13), 11/28/2021 11:30 (3), 11/28/2021 11:37 (1), 11/28/2021 11:45 (1), 08/08/2024 08:47 (16)
Complete: 🔍
Cache ID: 216::103

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