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CVE-2021-3320

Good to know:

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Date: May 24, 2021

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

Language: C

Severity Score

Related Resources (3)

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7
https://nvd.nist.gov/vuln/detail/CVE-2021-3320
https://www.mend.io/vulnerability-database/CVE-2021-3320

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Access of Resource Using Incompatible Type ('Type Confusion')

CWE-843

Top Fix

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CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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