Nlnetlabs Unbound up to 1.4.9 Error 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, which was classified as problematic, has been found in Nlnetlabs Unbound. This vulnerability affects unknown code of the component Error Handler. Performing a manipulation results in resource management. This vulnerability is known as CVE-2011-1922. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Nlnetlabs Unbound. This affects an unknown functionality of the component Error Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.

The weakness was published 05/31/2011 as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is uniquely identified as CVE-2011-1922 since 05/09/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 54978 (Fedora 14 : unbound-1.4.8-2.fc14 (2011-7555)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 1.2.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (67645), Tenable (54978), SecurityFocus (BID 47986†), OSVDB (72750†) and Secunia (SA44865†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

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: 54978
Nessus Name: Fedora 14 : unbound-1.4.8-2.fc14 (2011-7555)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69758
OpenVAS Name: FreeBSD Ports: unbound
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unbound 1.2.0

Timelineinfo

05/09/2011 🔍
05/25/2011 +16 days 🔍
05/25/2011 +0 days 🔍
05/31/2011 +6 days 🔍
05/31/2011 +0 days 🔍
06/01/2011 +1 days 🔍
06/07/2011 +6 days 🔍
06/07/2011 +0 days 🔍
03/23/2015 +1385 days 🔍
12/02/2024 +3541 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1922 (🔍)
GCVE (CVE): GCVE-0-2011-1922
GCVE (VulDB): GCVE-100-57555
CERT: 🔍
X-Force: 67645
SecurityFocus: 47986 - Unbound DNS Resolver Remote Denial of Service Vulnerability
Secunia: 44865 - Fedora update for unbound, Moderately Critical
OSVDB: 72750
Vulnerability Center: 31611 - Unbound DNS Resolver before 1.4.10 Remote Denial of Service Vulnerability, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/02/2024 00:02
Changes: 03/23/2015 16:50 (64), 03/23/2017 07:43 (12), 11/08/2021 01:44 (3), 12/02/2024 00:02 (15)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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