cve/2016/CVE-2016-7796.md

### [CVE-2016-7796](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7796)
![](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)
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### Description

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2016/09/30/1
- http://www.openwall.com/lists/oss-security/2016/09/30/1
- https://github.com/systemd/systemd/issues/4234#issuecomment-250441246
- https://github.com/systemd/systemd/issues/4234#issuecomment-250441246

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