Adobe Flash - Sprite Creation Use-After-Free

Author: Google Security Research
type: dos
platform: windows
port: 0
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