cve/2020/CVE-2020-25657.md

### [CVE-2020-25657](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25657)
![](https://img.shields.io/static/v1?label=Product&message=m2crypto&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20All%20released%20versions%20of%20m2crypto%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-385&color=brighgreen)

### Description

A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.

### POC

#### Reference
No PoCs from references.

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