CVE-2017-9789: Read after free in mod_http2.c Severity: Important Vendor: The Apache Software Foundation Versions Affected: httpd 2.4.26 Description: When under stress, closing many connections, the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour. Mitigation: 2.4.26 users of mod_http2 should upgrade to 2.4.27. Credit: The Apache HTTP Server security team would like to thank Robert AwiAcki for reporting this issue. References: # Iranian Exploit DataBase = http://IeDb.Ir [2017-07-13]