CVE-2020-0223

This is an unbounded write into kernel global memory, via a user-controlled buffer size.Product: AndroidVersions: Android kernelAndroid ID: A-135130450

published June 16, 2020

CVSS
—
EPSS
0%
Percentile
37.4
In the wild
Unconfirmed
What it is

⚡ An unbounded write into kernel global memory? That's like giving a chef an endless supply of ingredients without a recipe! 😱 Imagine a kitchen where the chef can dump as much flour into the mixing bowl as they want, without any limits. Eventually, the kitchen could overflow, ruining everything around it. In this case, the unbounded write behaves similarly, allowing data to spill over into critical areas of the kernel. An attacker could exploit this flaw to corrupt memory, potentially crashing the system or even elevating privileges—think of it as accidentally turning the kitchen into a disaster zone where no one can cook safely! If leveraged, it could lead to system instability or unauthorized access, putting device integrity at risk.

Put simply

Imagine a kitchen where the chef can dump as much flour into the mixing bowl as they want, without any limits. Eventually, the kitchen could overflow, ruining everything around it. In this case, the unbounded write behaves similarly, allowing data to spill over into critical areas of the kernel. This vulnerability allows an unbounded write into kernel global memory through a user-controlled buffer size, meaning the system can't effectively manage how much data is being written, leading to potential memory corruption.

What to do

An attacker could exploit this flaw to corrupt memory, potentially crashing the system or even elevating privileges—think of it as accidentally turning the kitchen into a disaster zone where no one can cook safely! If leveraged, it could lead to system instability or unauthorized access, putting device integrity at risk. While there's currently no known exploitation, it's wise to monitor for patches or updates from Android to address this vulnerability. Developers should review their code for any instances of unchecked buffer sizes and implement size limitations where necessary. You've got this! Keep your systems safe and sound! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00443 · 37.4th percentile
Published
2020-06-16T13:31Z
EPSS history
Timeline
  • 16 JUN 13:31Z
    This is an unbounded write into kernel global memory, via a user-controlled buffer size.Product: AndroidVersions: Android kernelAndroid ID: A-135130450
    cvelistv5