AZL-44166 CVE-2021-31618 affecting package mod_http2 for versions less than 2.0.29-3

Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating...

Security Best Practice: Get Yourself Familiar with the Header Rejection Tool

Web servers and applications parse not only the URL, but also the rest of the HTTP header data. Wrong parsing can lead to buffer overrun attacks and other vulnerabilities. Some exploits use the HTTP headers to cause damage. The exploit can be carried in standard headers the Host header for exampl...