### [CVE-2004-0837](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0837)
![](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

MySQL 4.x before 4.0.21, and 3.x before 3.23.49, allows attackers to cause a denial of service (crash or hang) via multiple threads that simultaneously alter MERGE table UNIONs.

### POC

#### Reference
- http://www.redhat.com/support/errata/RHSA-2004-611.html

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