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<?php $regex = '/(^a)(.*(?=ab))/'; $subject = "aaaaxyzaabaa"; // Comment/uncomment below as wanted. // All 3 functions are vulnerable (note, other functions are affected as well) preg_match_all($regex,$subject,$x); var_dump($x);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> array(1) { [0]=> string(8) "aaaaxyza" } [1]=> array(1) { [0]=> string(1) "a" } [2]=> array(1) { [0]=> string(7) "aaaxyza" } }

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