Description
In IoT Devices SDK, there is an implementation of calloc() that doesn't have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.
Published: 2021-05-04
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-9688 In IoT Devices SDK, there is an implementation of calloc() that doesn't have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.
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Google Cloud Iot Device Sdk For Embedded C
cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2024-08-03T18:44:13.675Z

Reserved: 2021-01-05T00:00:00.000Z

Link: CVE-2021-22547

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-05-04T13:15:07.427

Modified: 2024-11-21T05:50:18.583

Link: CVE-2021-22547

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses