CVE-2021-25372KEV · OVERDUE

Samsung Mobile Devices Improper Boundary Check Vulnerability

Medium · published March 26, 2021

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 6.1. It is confirmed in active exploitation. It sits in the 56.3th percentile for exploit probability.

1193
days past CISA
deadline
CVSS v3.1
6.1
EPSS
1%
Percentile
56.3
In the wild
Confirmed
What it is

⚠️ A simple boundary check is the Achilles' heel in DSP drivers! This vulnerability allows for out-of-bounds memory access, which could lead to unexpected behavior. 🔥 Think of it like a restaurant with a poorly defined kitchen boundary; the chef might accidentally grab ingredients from outside the kitchen, leading to a culinary disaster. Similarly, this memory breach can lead to chaotic system behavior if exploited. An attacker could manipulate the DSP driver to access out-of-bounds memory, potentially causing crashes or unpredictable outcomes in your system—like a rogue chef letting loose in the kitchen! This could result in loss of data integrity or even system instability.

Put simply

Think of it like a restaurant with a poorly defined kitchen boundary; the chef might accidentally grab ingredients from outside the kitchen, leading to a culinary disaster. Similarly, this memory breach can lead to chaotic system behavior if exploited. This vulnerability arises from an improper boundary check in the DSP driver prior to the SMR Mar-2021 Release 1, allowing attackers to access memory locations they shouldn't—essentially breaching the allocated memory limits.

What to do

An attacker could manipulate the DSP driver to access out-of-bounds memory, potentially causing crashes or unpredictable outcomes in your system—like a rogue chef letting loose in the kitchen! This could result in loss of data integrity or even system instability. To mitigate this risk, patch your systems to at least the SMR Mar-2021 Release 1. It's crucial to review the affected components and ensure that boundary checks are correctly implemented. Regularly audit your DSP drivers for compliance! You’ve got this! Stay proactive, patch up, and keep your systems safe. 🛡️

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00804 · 56.3th percentile
Published
2021-03-26T18:25Z
KEV added
2023-06-29 · due 2023-07-20
EPSS history
Timeline
  • 29 JUN 00:00Z
    Added to CISA KEV — remediate by Jul 20
    kev
  • 26 MAR 18:25Z
    An improper boundary check in DSP driver prior to SMR Mar-2021 Release 1 allows out of bounds memory access
    cvelistv5