CVE-2018-21063

An issue was discovered on Samsung mobile devices with M(6.0), N(7.x), and O(8.x) (Exynos chipsets) software

published April 8, 2020

CVSS
—
EPSS
1%
Percentile
45.8
In the wild
Unconfirmed
What it is

⚠️ There’s a sneaky architectural flaw in Samsung devices that could let attackers reach deeper than expected! Think of it like a hotel with a secure vault that’s not locked properly—anyone with the right access key can stroll right into the vault area, bypassing security entirely. This flaw in the Keymaster software is a bit like leaving that vault door ajar! If exploited, this vulnerability could allow unauthorized access to sensitive information, potentially compromising user data stored on the device. Imagine an intruder being able to peek into your personal files and settings without ever raising a red flag!

Put simply

Think of it like a hotel with a secure vault that’s not locked properly—anyone with the right access key can stroll right into the vault area, bypassing security entirely. This flaw in the Keymaster software is a bit like leaving that vault door ajar! The architectural issue stems from tlApi in the Trusted Execution Environment (TEE) not being properly safeguarded. This flaw could allow malicious actors to manipulate the processes running within the TEE, potentially gaining unauthorized access to sensitive operations.

What to do

If exploited, this vulnerability could allow unauthorized access to sensitive information, potentially compromising user data stored on the device. Imagine an intruder being able to peek into your personal files and settings without ever raising a red flag! For users of affected Samsung devices (running M(6.0), N(7.x), and O(8.x) on Exynos chipsets), it’s essential to keep your device software up-to-date as Samsung may release patches to rectify this. Regularly check for updates and install any security patches to minimize risk. You’ve got this! Stay vigilant and keep that software updated—security hero status: activated! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00564 · 45.8th percentile
Published
2020-04-08T17:28Z
EPSS history
Timeline
  • 08 APR 17:28Z
    An issue was discovered on Samsung mobile devices with M(6.0), N(7.x), and O(8.x) (Exynos chipsets) software
    cvelistv5