cve/2023/CVE-2023-1390.md

### [CVE-2023-1390](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1390)
![](https://img.shields.io/static/v1?label=Product&message=Linux%20kernel%20(TIPC%20kernel%20module)&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-1050&color=brighgreen)

### Description

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

### POC

#### Reference
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5

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