6.5
MEDIUM
CVE-2021-27411
Micrium OS Integer Wrap-around Vulnerability (Memory Allocation)
Description

Micrium OS Versions 5.10.1 and prior are vulnerable to integer wrap-around in functions Mem_DynPoolCreate, Mem_DynPoolCreateHW and Mem_PoolCreate. This unverified memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as very small blocks of memory being allocated instead of very large ones.

INFO

Published Date :

May 3, 2022, 9:15 p.m.

Last Modified :

May 12, 2022, 3:27 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.5

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-27411 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Silabs micrium_os
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27411.

URL Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 Third Party Advisory US Government Resource
https://www.silabs.com/developers/micrium-os Product Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27411 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27411 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 12, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
    Changed Reference Type https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 No Types Assigned https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 Third Party Advisory, US Government Resource
    Changed Reference Type https://www.silabs.com/developers/micrium-os No Types Assigned https://www.silabs.com/developers/micrium-os Product, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:silabs:micrium_os:*:*:*:*:*:*:*:* versions up to (including) 5.10.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27411 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27411 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.00%

score

0.35985

percentile

CVSS31 - Vulnerability Scoring System
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