CVE-2023-1390

HIGH7.5

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module

Published Mar 16, 2023

Modified 8 months ago

No fix available

Details

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

WEBhttps://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5 WEBhttps://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6 WEBhttps://infosec.exchange/%40_mattata/109427999461122360 WEBhttps://security.netapp.com/advisory/ntap-20230420-0001/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2023-1390

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

7.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

Other

CWE-1050

Ecosystems

Timeline

PublishedMar 16, 2023

ModifiedApr 23, 2025