CVE-2021-22547 is a heap buffer overflow vulnerability in the Google Cloud IoT Device SDK for Embedded C, specifically affecting versions prior to 1.0.3. This flaw stems from an unchecked calloc() implementation, allowing an authenticated local attacker to craft memory objects that wrap around the intended buffer, gaining unauthorized access to other heap memory regions. Rated 7.8 HIGH on CVSS, it presents a significant risk with high confidentiality, integrity, and availability impacts. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.3CPE matchmatch criteria | cpe:2.3:a:google:cloud_iot_device_sdk_for_embedded_c:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.