CVEs-PoC/2021/CVE-2021-1881.md

### [CVE-2021-1881](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1881)
![](https://img.shields.io/static/v1?label=Product&message=iOS%20and%20iPadOS&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=macOS&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=tvOS&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=watchOS&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2011.3%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2014.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%202021%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%207.4%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Processing%20a%20maliciously%20crafted%20font%20file%20may%20lead%20to%20arbitrary%20code%20execution&color=brighgreen)

### Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary code execution.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/p1ay8y3ar/cve_monitor