A security Bypass vulnerability exists in the FcgidPassHeader Proxy in modfcgid through 2016-07-07.

Heap-based buffer overflow in the fcgidheaderbucketread function in fcgidbucket.c in the modfcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.

fcgidspawnctl.c in the modfcgid module 2.3.6 for the Apache HTTP Server does not recognize the FcgidMaxProcessesPerClass directive for a virtual host, which makes it easier for remote attackers to cause a denial of service (memory consumption) via a series of HTTP requests that triggers a process count higher than the intended limit.

A flaw was found in the modfcgid module of httpd. A malformed FastCGI response may result in a stack-based buffer overflow in the modules/fcgid/fcgidbucket.c file in the fcgidheaderbucketread() function, resulting in an application crash.