Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-3430— BT: Assertion failure on repeated LL_CONNECTION_PARAM_REQ

Quick assessment

Affected
zephyrproject-rtos zephyr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr v1.14版本及之后版本存在安全漏洞，该漏洞源于通过重复的 LL_CONNECTION_PARAM_REQ 可达到断言。

CVSS 6.5 · Medium EPSS 0.89% · P59

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-3430

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
BT: Assertion failure on repeated LL_CONNECTION_PARAM_REQ
Source: CVE Program / CVE List V5
Vulnerability Description
Assertion reachable with repeated LL_CONNECTION_PARAM_REQ. Zephyr versions >= v1.14 contain Reachable Assertion (CWE-617). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-46h3-hjcq-2jjr
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是Zephyr Project开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr v1.14版本及之后版本存在安全漏洞，该漏洞源于通过重复的 LL_CONNECTION_PARAM_REQ 可达到断言。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zephyrproject-rtos zephyr v1.14.0 ~ unspecified -

II. Public POCs for CVE-2021-3430

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-3430

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-3430 (1)

Same Patch Batch · zephyrproject-rtos · 2022-06-28 · 6 CVEs total

CVE-2021-3434 4.9 MEDIUM L2CAP: Stack based buffer overflow in le_ecred_conn_req()
CVE-2021-3431 4.3 MEDIUM BT: Assertion failure on repeated LL_FEATURE_REQ
CVE-2021-3432 4.3 MEDIUM BT: Invalid interval in CONNECT_IND leads to Division by Zero
CVE-2021-3433 4.0 MEDIUM BT: Invalid channel map in CONNECT_IND results to Deadlock
CVE-2021-3435 4.0 MEDIUM L2CAP: Information leakage in le_ecred_conn_req()

IV. Related Vulnerabilities

Same product: zephyr
Same vendor: zephyrproject-rtos
Same weakness: CWE-617

V. Comments for CVE-2021-3430

No comments yet

Leave a comment