CVE-2021-3329
DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Lack of proper validation in HCI Host stack initialization can cause a crash of the bluetooth stack
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-27 CVE Reserved
- 2023-02-26 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2024-09-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-665: Improper Initialization
- CWE-703: Improper Check or Handling of Exceptional Conditions
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-117 | 2024-08-03 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zephyrproject Search vendor "Zephyrproject" | Zephyr Search vendor "Zephyrproject" for product "Zephyr" | 2.4.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.4.0" | - |
Affected
| ||||||
| Zephyrproject Search vendor "Zephyrproject" | Zephyr Search vendor "Zephyrproject" for product "Zephyr" | 2.4.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.4.0" | rc1 |
Affected
| ||||||
| Zephyrproject Search vendor "Zephyrproject" | Zephyr Search vendor "Zephyrproject" for product "Zephyr" | 2.4.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.4.0" | rc2 |
Affected
| ||||||
| Zephyrproject Search vendor "Zephyrproject" | Zephyr Search vendor "Zephyrproject" for product "Zephyr" | 2.4.0 Search vendor "Zephyrproject" for product "Zephyr" and version "2.4.0" | rc3 |
Affected
| ||||||