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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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

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.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

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

NVD Base Score: 7.5
NVD Vector: 🔍

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

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 🔍
10/21/2022 +30 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: DLA 3138-1
Status: Confirmed

CVE: CVE-2022-2795 (🔍)

Entryinfo

Created: 09/21/2022 15:13
Updated: 10/21/2022 18:38
Changes: 09/21/2022 15:13 (41), 10/21/2022 18:30 (1), 10/21/2022 18:38 (21)
Complete: 🔍

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