cve/2009/CVE-2009-2958.md

### [CVE-2009-2958](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2958)
![](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

The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.

### POC

#### Reference
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816

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