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CVE-2021-3966

Date: January 10, 2023

usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.

Language: C

Severity Score

Related Resources (3)

https://nvd.nist.gov/vuln/detail/CVE-2021-3966
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hfxq-3w6x-fv2m
https://www.mend.io/vulnerability-database/CVE-2021-3966

Severity Score

Weakness Type (CWE)

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Heap-based Buffer Overflow

CWE-122

CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): HIGH
Availability (A): HIGH

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