Adobe Flash - Sprite Creation Use-After-Free

Author: Google Security Research
type: dos
platform: windows
port: 
date_added: 2016-03-23 
date_updated: 2016-03-23 
verified: 1 
codes: CVE-2016-1000 
tags: 
aliases:  
screenshot_url:  
application_url: 

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=718

There is a use-after-free in Sprite Creation. If a Sprite is created, and then the handler for the frameConstructed event triggers a remove object action, the Sprite is then used after it has been freed.

A sample swf is attached.


Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39610.zip