CVE-2018-4254

In macOS High Sierra before 10.13.5, an input validation issue existed in the kernel

published January 11, 2019

CVSS
—
EPSS
1%
Percentile
69.9
In the wild
Unconfirmed
What it is

⚠️ A sneaky input validation issue lurks in the macOS kernel before version 10.13.5! This flaw is like a bad recipe that doesn't check ingredients, leading to some unexpected results. 🍏 Think of the kernel as a restaurant kitchen where the chef doesn't verify the food quality before cooking. If the chef isn’t checking the ingredients used, they might serve a dish that causes a bit of chaos for the diners! While no known exploits have been reported, this input validation flaw could potentially allow a malicious user to manipulate system processes unexpectedly. If left unaddressed, it might lead to stability issues or other disruptive behavior in your macOS environment.

Put simply

Think of the kernel as a restaurant kitchen where the chef doesn't verify the food quality before cooking. If the chef isn’t checking the ingredients used, they might serve a dish that causes a bit of chaos for the diners! This vulnerability in macOS High Sierra prior to 10.13.5 arises from improper input validation within the kernel, which could allow for unexpected outcomes when handling system calls or data input.

What to do

While no known exploits have been reported, this input validation flaw could potentially allow a malicious user to manipulate system processes unexpectedly. If left unaddressed, it might lead to stability issues or other disruptive behavior in your macOS environment. To protect your system, ensure you update your macOS to version 10.13.5 or later. Regularly checking for system updates is key to maintaining security and stability. You've got this! Stay proactive and keep your system updated for a safer computing experience. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01294 · 69.9th percentile
Published
2019-01-11T18:00Z
EPSS history
Timeline
  • 11 JAN 18:00Z
    In macOS High Sierra before 10.13.5, an input validation issue existed in the kernel
    cvelistv5