Executive Summary

Informations
Name CVE-2023-43622 First vendor Publication 2023-10-23
Vendor Cve Last vendor Modification 2023-11-01

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

An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout.

This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57.

Users are recommended to upgrade to version 2.4.58, which fixes the issue.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-43622

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 253

Sources (Detail)

Source Url
MISC https://httpd.apache.org/security/vulnerabilities_24.html
https://security.netapp.com/advisory/ntap-20231027-0011/

Alert History

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Date Informations
2024-08-02 13:51:43
  • Multiple Updates
2024-08-02 01:34:01
  • Multiple Updates
2024-02-02 02:48:41
  • Multiple Updates
2024-02-01 12:31:06
  • Multiple Updates
2023-11-01 21:27:36
  • Multiple Updates
2023-10-27 21:27:23
  • Multiple Updates
2023-10-23 17:27:20
  • Multiple Updates
2023-10-23 13:27:23
  • First insertion