CVE-2023-43622

Summary

CVE-2023-43622 is a vulnerability in Apache HTTP Server versions 2.4.55 through 2.4.57. An attacker can exploit this issue by opening a HTTP/2 connection with an initial window size of 0, which indefinitely blocks handling of that connection. This could result in the exhaustion of worker resources in the server, mimicking the infamous "slow loris" attack pattern. To mitigate this risk, users are advised to upgrade to version 2.4.58, as it terminates such connections properly after the configured timeout.

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