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.
Published: 2023-03-16
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
EUVD EUVD EUVD-2023-23646 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.
Ubuntu USN Ubuntu USN USN-6045-1 Linux kernel vulnerabilities
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Linux Linux Kernel
Redhat Enterprise Linux Rhel Aus Rhel E4s Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-04-23T16:23:37.728Z

Reserved: 2023-03-14T00:00:00.000Z

Link: CVE-2023-1390

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2023-03-16T21:15:11.447

Modified: 2025-04-23T17:16:25.377

Link: CVE-2023-1390

cve-icon Redhat

Severity : Important

Publid Date: 2021-01-09T00:00:00Z

Links: CVE-2023-1390 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses