Amazon CVE-2021-31571

CRITICAL

Integer Overflow or Wraparound (CWE-190)

2021-04-22 cve@mitre.org

Buffer Overflow Integer Overflow Amazon Freertos

9.8

CVSS 3.1 · NVD

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Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

1

CVE Published

Apr 22, 2021 - 18:15 nvd

CRITICAL 9.8

DescriptionNVD

The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in queue.c for queue creation.

AnalysisAI

The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in queue.c for queue creation. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified as Integer Overflow (CWE-190), which allows attackers to cause unexpected behavior through arithmetic overflow. The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in queue.c for queue creation. Affected products include: Amazon Freertos. Version information: before 10.4.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate arithmetic operations, use safe integer libraries, check bounds before allocation.

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CVE-2021-31571 vulnerability details – vuln.today

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