### [CVE-2019-11756](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11756)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Use-after-free%20of%20SFTKSession%20object&color=brighgreen)

### Description

Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1508776
- https://bugzilla.mozilla.org/show_bug.cgi?id=1508776

#### Github
- https://github.com/ARPSyndicate/cvemon