CVE-2023-1390

2023-03-1621:15:11

CWE-1050

[email protected]

web.nvd.nist.gov

104

cve-2023-1390

linux kernel

tipc module

denial of service

vulnerability

nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.9 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

54.7%

JSON

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.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange≤5.11

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Linux kernel (TIPC kernel module)",
    "versions": [
      {
        "version": "Fixed in kernel 5.11-rc4",
        "status": "affected"
      }
    ]
  }
]