cve/2020/CVE-2020-24753.md

### [CVE-2020-24753](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24753)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.

### POC

#### Reference
- https://warcollar.com/cve-2020-24753.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ep-infosec/50_google_honggfuzz
- https://github.com/google/honggfuzz
- https://github.com/lllnx/lllnx