The DefineConstantPool action in the ActionScript 2 virtual machine in Adobe Flash Player 10.x before 10.0.12.36 and 9.x before 9.0.151.0, and Adobe AIR before 1.5, accepts an untrusted input value for a "constant count," which allows remote attackers to read sensitive data from process memory via a crafted PDF file.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.