ISC BIND up to 9.11.37-S1/9.16.32/9.18.6/9.19.4 DNS Resolution Service denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in ISC BIND up to 9.11.37-S1/9.16.32/9.18.6/9.19.4. This affects an unknown function of the component DNS Resolution Service. Such manipulation leads to denial of service. This vulnerability is listed as CVE-2022-2795. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ISC BIND up to 9.11.37-S1/9.16.32/9.18.6/9.19.4 (Domain Name Software) and classified as problematic. Affected by this issue is an unknown code block of the component DNS Resolution Service. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.

The weakness was presented 09/21/2022. The advisory is shared for download at kb.isc.org. This vulnerability is handled as CVE-2022-2795 since 08/12/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 239987 (TencentOS Server 4: bind (TSSA-2024:0612)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.16.33, 9.16.33-S1, 9.18.7 or 9.19.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (239987). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

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

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Internet Systems Consortium (ISC)): 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: 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: 239987
Nessus Name: TencentOS Server 4: bind (TSSA-2024:0612)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIND 9.16.33/9.16.33-S1/9.18.7/9.19.5

Timelineinfo

08/12/2022 🔍
09/21/2022 +40 days 🔍
09/21/2022 +0 days 🔍
06/17/2025 +1000 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: DLA 3138-1
Status: Confirmed

CVE: CVE-2022-2795 (🔍)
GCVE (CVE): GCVE-0-2022-2795
GCVE (VulDB): GCVE-100-209228

Entryinfo

Created: 09/21/2022 15:13
Updated: 06/17/2025 17:43
Changes: 09/21/2022 15:13 (41), 10/21/2022 18:30 (1), 10/21/2022 18:38 (21), 11/29/2024 13:45 (18), 06/17/2025 17:43 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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