Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2018-11763: apache2 DoS for HTTP/2 connections by continuous SETTINGS

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Alpine Linux: CVE-2018-11763: apache2 DoS for HTTP/2 connections by continuous SETTINGS

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
09/25/2018
Created
03/19/2019
Added
10/30/2018
Modified
06/17/2022

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(s)

  • alpine-linux-upgrade-apache2

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