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CVE-2023-1390

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

Github

No PoCs found on GitHub currently.