Race condition in the modstatus module in the Apache HTTP Server before 2.4.10 allows remote attackers to cause a denial of service (heap-based buffer overflow), or possibly obtain sensitive credential information or execute arbitrary code, via a crafted request that triggers improper scoreboard handling within the statushandler function in modules/generators/modstatus.c and the luaapscoreboardworker function in modules/lua/lua_request.c.