The remote host is missing an update to the system as announced in the referenced advisory.
The following packages are affected: apache apache-event apache-itk apache-peruser apache-worker
CVE-2011-3192 The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Solution: Update your system with the appropriate patches or software upgrades.