CVE-2022-23919CWE-121

A stack-based buffer overflow vulnerability exists in the confsrv set_mf_rule functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14

High · published August 5, 2022

CVSS v3.0
8.8
EPSS
1%
Percentile
71.0
In the wild
Unconfirmed
What it is

⚡ A crafty stack-based buffer overflow hides in TCL LinkHub's confsrv set_mf_rule function! Just one specially-crafted network packet could trigger a meltdown. 🔥 Think of this vulnerability like a waiter who misinterprets an order and serves a massive portion — it overwhelms the system's ability to handle it properly. A single incorrect message floods the stack, causing chaos where there should be control. An attacker could exploit this weakness to inject malicious code, leading to potential system crashes or even unauthorized access to sensitive data. This could disrupt your network like a storm disrupting the calm of a well-organized restaurant — absolutely devastating!

Put simply

Think of this vulnerability like a waiter who misinterprets an order and serves a massive portion — it overwhelms the system's ability to handle it properly. A single incorrect message floods the stack, causing chaos where there should be control. This vulnerability in TCL LinkHub allows attackers to craft specific network packets that exploit the name field within a protobuf message, leading to a stack-based buffer overflow. By sending this malicious packet, the attacker can compromise the stability of the device and potentially execute arbitrary code.

What to do

An attacker could exploit this weakness to inject malicious code, leading to potential system crashes or even unauthorized access to sensitive data. This could disrupt your network like a storm disrupting the calm of a well-organized restaurant — absolutely devastating! To secure your systems, patch to the latest firmware version as soon as it's available. Regularly audit your network traffic to detect any suspicious packets that could trigger this vulnerability. Additionally, consider implementing network segmentation to minimize exposure. You've got this! By following these steps, you can protect your network from this sneaky exploit and keep everything running smoothly. 🛡️

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01337 · 71.0th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2022-08-05T21:12Z
EPSS history
Timeline
  • 05 AUG 21:12Z
    A stack-based buffer overflow vulnerability exists in the confsrv set_mf_rule functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14
    cvelistv5