cve/2007/CVE-2007-4643.md

### [CVE-2007-4643](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4643)
![](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

Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.

### POC

#### Reference
- http://aluigi.org/poc/dumsdei.zip
- http://securityreason.com/securityalert/3084

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