The CSCvm94513 states that it does not affect 5500 Wireless LAN Controller, but on the details section of the CSCvm94513 it states:
Known Affected Releases: (2)
8.8(100.0)
8.9(1.172)
Known Fixed Releases: (3)
8.9(1.213)
8.8(114.47)
8.8(110.1)
But i can find any of the Known Fixed Releases on the Image download page.