VULNERABILITY INTELLIGENCE

CVE-2023-1390

CVSS score7.5 HIGH
EPSS probability5.10%
CISA KEVNot currently listed
Published2023-03-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • CWE-1050: Excessive Platform Resource Consumption within a Loop

Primary references