The Control and Provisioning of Wireless Access Points (CAPWAP) protocol implementation on Cisco Wireless LAN Controller (WLC) devices allows remote attackers to cause a denial of service via a crafted CAPWAP packet that triggers a buffer over-read, aka Bug ID CSCuh81880.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.