Vulnerability CVE-2023-1390


Published: 2023-03-16

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.

 References:
https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
https://infosec.exchange/@_mattata/109427999461122360

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