vulnerability
Apache HTTPD: DoS for HTTP/2 connections by continuous SETTINGS (CVE-2018-11763)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Sep 25, 2018 | Sep 26, 2018 | Jul 18, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Sep 25, 2018
Added
Sep 26, 2018
Modified
Jul 18, 2025
Description
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
Solution
apache-httpd-upgrade-latest
References
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