cve/2021/CVE-2021-3714.md

### [CVE-2021-3714](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3714)
![](https://img.shields.io/static/v1?label=Product&message=kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20Not%20known%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-200%20-%20Exposure%20of%20Sensitive%20Information%20to%20an%20Unauthorized%20Actor&color=brighgreen)

### Description

A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00			`### [CVE-2021-3714](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3714)`
			`![](https://img.shields.io/static/v1?label=Product&message=kernel&color=blue)`
			`![](https://img.shields.io/static/v1?label=Version&message=%3D%20Not%20known%20&color=brighgreen)`
			`![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-200%20-%20Exposure%20of%20Sensitive%20Information%20to%20an%20Unauthorized%20Actor&color=brighgreen)`

			`### Description`

			`A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged.`

			`### POC`

			`#### Reference`
			`No PoCs from references.`

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