PT-2021-19631 · Amazon · Amazon Web Services Freertos

Published 2021-05-03 · Updated 2021-05-12 · CVE-2021-32020

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Amazon Web Services FreeRTOS versions prior to 10.4.3

Description: The issue is related to insufficient bounds checking during the management of heap memory in the kernel.

Recommendations: For versions prior to 10.4.3, update to version 10.4.3 or later to resolve the issue.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2021-32020

Affected Products

Amazon Web Services Freertos

References · 4

• https://github.com/FreeRTOS/FreeRTOS-Kernel/commit/c7a9a01c94987082b223d3e59969ede64363da63 · Patch
• https://osv.dev/vulnerability/CVE-2021-32020 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32020 · Security Note
• https://t.me/cvenotify/13976 · Telegram Post