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Apache HTTP Server Uncontrolled Resource Consumption Vulnerability - CVE-2023-45802 - Vulnerability Database
Apache HTTP Server

Apache HTTP Server Uncontrolled Resource Consumption Vulnerability - CVE-2023-45802

Medium
Reference: CVE-2023-45802
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2023-45802
Title: Apache HTTP Server Uncontrolled Resource Consumption Vulnerability
Overview:

When a HTTP/2 stream was reset (RST frame) by a client there was a time window were the request39s memory resources were not reclaimed immediately. Instead de-allocation was deferred to connection close. A client could send new requests and resets keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close all resources were reclaimed but the process might run out of memory before that. This was found by the reporter during testing ofCVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During quotnormalquot HTTP/2 use the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58 which fixes the issue.