Executive Summary

Informations
Name CVE-2022-3094 First vendor Publication 2023-01-26
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited.

Memory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes.

If a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome.

BIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don't intend to address this for BIND versions prior to BIND 9.16. This issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3094

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 673

Sources (Detail)

Source Url
MISC https://kb.isc.org/docs/cve-2022-3094

Alert History

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Date Informations
2024-02-02 02:35:25
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2024-02-01 12:27:05
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2023-12-01 02:23:29
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2023-11-07 21:30:26
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2023-09-23 02:20:17
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2023-09-05 13:29:54
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2023-09-05 01:26:31
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2023-09-02 13:28:02
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2023-09-02 01:26:55
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2023-08-12 13:34:32
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2023-08-12 01:26:11
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2023-08-11 13:26:08
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2023-08-11 01:27:01
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2023-08-06 13:23:58
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2023-08-06 01:25:54
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2023-08-04 13:24:23
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2023-08-04 01:26:15
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2023-07-14 13:24:24
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2023-07-14 01:26:00
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2023-03-29 02:25:49
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2023-03-28 12:26:08
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2023-02-06 21:27:21
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2023-02-03 21:27:17
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2023-01-27 17:27:18
  • Multiple Updates
2023-01-27 00:27:15
  • First insertion