Multiple integer overflows in Google Chrome before 4.1.249.1036 allow remote attackers to have an unspecified impact via vectors involving WebKit JavaScript objects.
Integer Overflow or Wraparound The product performs a calculation that can
produce an integer overflow or wraparound when the logic
assumes that the resulting value will always be larger than
the original value. This occurs when an integer value is
incremented to a value that is too large to store in the
associated representation. When this occurs, the value may
become a very small or negative number.