Kayran has detected that the Version of Apache HTTP Server being used is vulnerable to a read-after-free on a string compare in ‘mod_http2’.
CVE-2019-0196 is categorized as a ‘Use After Free’ vulnerability (CWE-416).
A Use After Free occurs when we Reference memory after it has been freed. That can cause a program to crash, use unexpected values, or to execute codes.
By using a fuzzed network input, the http/2 request handling could be made to access freed memory in strings comparison when determining the method of a request.
That will lead to processing the request incorrectly.
It could lead to a decrease in performance and interruptions in the availability of resources.
To fix CVE-2019-0196, upgrade the version of Apache HTTP Server being used to 2.4.39.