![]() ![]() This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. *) SECURITY: CVE-2023-43622: Apache HTTP Server: DoS in HTTP/2 with initial windows size 0 () 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. Users are recommended to upgrade to version 2.4.58, which fixes the issue. The kept memory would not become noticeable before the connection closes or times out. During "normal" HTTP/2 use, the probability to hit this bug is very low. ![]() This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. On connection close, all resources were reclaimed, but the process might run out of memory before that. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. ![]() Instead, de-allocation was deferred to connection close. *) SECURITY: CVE-2023-45802: Apache HTTP Server: HTTP/2 stream memory not reclaimed right away on RST () When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. If you don't currently have CentOS repo access, please reach out to your Perforce/OpenLogic salesperson … you may already be entitled to access with your existing support contract! As usual, please ensure that you test these updates before deploying to production. We recommend that you update your CentOS 8 systems to protect against these vulnerabilities. OpenLogic’s Enterprise Linux Team has recently published the following updates: Updates to the OpenLogic CentOS Repository Key Security, Maintenance, and Features Releases Security Based Updates
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