CVE-2021-31572 — CRITICAL (9.8)

Q: What is CVE-2021-31572?

CVE-2021-31572 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in stream_buffer.c for a stream buffer.

Q: How severe is CVE-2021-31572?

CVE-2021-31572 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-31572?

Check the references section above for vendor advisories and patch information. Affected products include: Amazon Freertos.

Vulnerability Description

The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in stream_buffer.c for a stream buffer.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Amazon	Freertos	< 10.4.3

Related Weaknesses (CWE)

CWE-190

References

https://github.com/FreeRTOS/FreeRTOS-Kernel/commit/d05b9c123f2bf9090bce386a244fcPatchThird Party Advisory
https://github.com/FreeRTOS/FreeRTOS-Kernel/commit/d05b9c123f2bf9090bce386a244fcPatchThird Party Advisory

FAQ

What is CVE-2021-31572?

CVE-2021-31572 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in stream_buffer.c for a stream buffer.

How severe is CVE-2021-31572?

CVE-2021-31572 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-31572?

Check the references section above for vendor advisories and patch information. Affected products include: Amazon Freertos.