CVE-2021-27431 - Vulnerability Details - OpenCVE

ARM CMSIS RTOS2 versions prior to 2.1.3 are vulnerable to integer wrap-around inosRtxMemoryAlloc (local malloc equivalent) function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or injected code execution.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00517.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Arm	Cmsis-rtos

Configuration 1 [-]

cpe:2.3:o:arm:cmsis-rtos:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-14185	ARM CMSIS RTOS2 versions prior to 2.1.3 are vulnerable to integer wrap-around inosRtxMemoryAlloc (local malloc equivalent) function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or injected code execution.

Fixes

Solution

ARM CMSIS-RTOS2 – Update in progress, expected in June

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

History

Wed, 16 Apr 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2022-05-03T20:23:35.000Z

Updated: 2025-04-16T16:24:54.231Z

Reserved: 2021-02-19T00:00:00.000Z

Link: CVE-2021-27431

Vulnrichment

Updated: 2024-08-03T20:48:17.175Z

NVD

Status : Modified

Published: 2022-05-03T21:15:08.500

Modified: 2024-11-21T05:57:58.613

Link: CVE-2021-27431

Redhat

No data.

OpenCVE Enrichment

No data.

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