medium6.3
CVE-2021-22547
In IoT Devices SDK, there is an implementation of calloc() that doesn't have a length check.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cloud Iot Device Sdk For Embedded C | before 1.0.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/blob/master/RELEASE-NOTES.md
- https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/pull/119
- https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/blob/master/RELEASE-NOTES.md
- https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/pull/119