httpd: possible crash on shutdown due to flaw in scoreboard handling

scoreboard.c in the Apache HTTP Server 2.2.21 and earlier might allow local users to cause a denial of service daemon crash during shutdown or possibly have unspecified other impact by modifying a certain type field within a scoreboard shared memory segment, leading to an invalid call to the free...

Apache Httpd < 2.2.22 : scoreboard parent DoS

A flaw was found in the handling of the scoreboard. An unprivileged child process could cause the parent process to crash at shutdown rather than terminate cleanly...

Apache Httpd < 2.0.65 : scoreboard parent DoS

A flaw was found in the handling of the scoreboard. An unprivileged child process could cause the parent process to crash at shutdown rather than terminate cleanly...