cve/2021/CVE-2021-37606.md

### [CVE-2021-37606](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37606)
![](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

Meow hash 0.5/calico does not sufficiently thwart key recovery by an attacker who can query whether there's a collision in the bottom bits of the hashes of two messages, as demonstrated by an attack against a long-running web service that allows the attacker to infer collisions by measuring timing differences.

### POC

#### Reference
- https://peter.website/meow-hash-cryptanalysis

#### Github
No PoCs found on GitHub currently.