Google Chrome before 23.0.1271.97 and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.5 do not properly perform AAC decoding which allows remote attackers to cause a denial of service (stack memory corruption) or possibly have unspecified other impact via vectors related to \an off-by-one overwrite when switching to LTP profile from MAIN.\