Flash version 18.0.0.209 contains new mitigations to defend against corruptions of Vector.<uint> (and other) lengths. One of these mitigations, at Vector access time, compares the Vector's in-memory length with a representation of the same length XOR'ed with a secret cookie. The bypass comes about because the secret cookie value is stored inside a structure, and a pointer to that structure is stored alongside the Vector length.
fcdf12cd364c0ea733d2eac6b27e7d2f9f878fe5206bb8c75cbfc449ce599745
© 2022 Packet Storm. All rights reserved.
%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)){kind=small}
Follow us on Twitter
Follow us on Facebook
Subscribe to an RSS Feed