AFLGo_D: A Novel Power Schedule Scheme Considering Multiple Factors Dynamically for Directed Fuzzing

AFLGo's power schedule has some problems to be solved. This paper proposes a novel power schedule scheme for AFLGo. In the scheme, the new simulated annealing algorithm for AFLGo, the AFLGo power schedule algorithm based on the number of uncovered branches, and the AFLGo power schedule algorithm based on the target reachability are included. The scheme is integrated into AFLGo_D. Through experimental comparison, it is verified that AFLGo_D has improved the path coverage rate, the shortest distance of the seed, and the number of crashes found.