Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2023-43622

Good to know:

icon

Date: October 23, 2023

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.

Language: C

Severity Score

Related Resources (8)

https://security-tracker.debian.org/tracker/CVE-2023-43622
https://nvd.nist.gov/vuln/detail/CVE-2023-43622
https://seclists.org/oss-sec/2023/q4/150
https://security.netapp.com/advisory/ntap-20231027-0011/
https://httpd.apache.org/security/vulnerabilities_24.html
https://github.com/apache/httpd/commit/06ceb22deb88c144c199305278e8fb9325bee748
https://access.redhat.com/security/cve/CVE-2023-43622
https://www.mend.io/vulnerability-database/CVE-2023-43622

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

icon

Upgrade Version

Upgrade to version 2.4.58

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

Do you need more information?

Contact Us