Description
A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.
Remediation
References
Related Vulnerabilities
WordPress Plugin BuddyPress Cross-Site Request Forgery (2.9.0)
WordPress 4.7.x Multiple Vulnerabilities (4.7 - 4.7.26)
Joomla Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2017-16633)
WordPress Plugin WP Table Builder-WordPress Table Cross-Site Scripting (1.3.9)
WordPress Plugin Hide Featured Image Unspecified Vulnerability (1.1)