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.
History

Wed, 18 Sep 2024 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2023-10-23T06:50:51.555Z

Updated: 2024-09-17T14:19:24.281Z

Reserved: 2023-09-20T07:45:21.299Z

Link: CVE-2023-43622

cve-icon Vulnrichment

Updated: 2024-08-02T19:44:43.773Z

cve-icon NVD

Status : Modified

Published: 2023-10-23T07:15:11.243

Modified: 2024-11-21T08:24:29.207

Link: CVE-2023-43622

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-10-10T00:00:00Z

Links: CVE-2023-43622 - Bugzilla