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Apache HTTP Server 2.4.x < 2.4.25 Multiple Vulnerabilities



The remote web server is missing an Apache HTTP Server patch update.


The version of Apache HTTP Server 2.4.x installed on the remote host is prior to 2.4.25. It is, therefore, affected by multiple vulnerabilities :

- A flaw exists in the 'mod_http2' component that is triggered when handling the 'LimitRequestFields' directive and endless HTTP/2 CONTINUATION frames. This may allow a remote attacker to inject unlimited request headers, exhausting available memory resources. (CVE-2016-8740) - A flaw exists that is triggered when handling whitespace patterns in User-Agent headers. This may allow a remote attacker to use a specially crafted User-Agent header to cause the program to incorrectly handle sequences of requests, potentially interpreting responses incorrectly and polluting the cache, or disclosing content from one request to a second downstream user-agent. (CVE-2016-8743)


Upgrade to Apache HTTP Server version 2.4.25 or later.