CVE-2023-1390

State: Published
Severity: 7.5 High
Published: Mar 16, 2023
Updated: Sep 18, 2026
Reserved: Mar 14, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-1050

Affected Products

Product	Versions
Linux kernel (TIPC kernel module)n/a	Fixed in kernel 5.11-rc4Affected

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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