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CVE-2023-1390

Published: Mar 16, 2023

Modified: Apr 23, 2025

PUBLISHED

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.

Vendor	Product	Versions
n/a	Linux kernel (TIPC kernel module)	affected `Fixed in kernel 5.11-rc4`

Weaknesses (CWE)

References

https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5

https://infosec.exchange/%40_mattata/109427999461122360

https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6

https://security.netapp.com/advisory/ntap-20230420-0001/

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