CVE-2021-46839
Quick assessment
Affected
Huawei HarmonyOS
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.
Huawei HarmonyOS是中国华为（Huawei）公司的一个操作系统。提供一个基于微内核的全场景分布式操作系统。 Huawei HarmonyOS 2.0之前版本存在缓冲区错误漏洞，该漏洞源于HW_KEYMASTER模块存在缺少长度检查的漏洞，攻击者能通过构造恶意数据，造成越界访问。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-46839
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The HW_KEYMASTER module has a vulnerability of missing bounds check on length.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Huawei HarmonyOS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Huawei HarmonyOS是中国华为（Huawei）公司的一个操作系统。提供一个基于微内核的全场景分布式操作系统。 Huawei HarmonyOS 2.0之前版本存在缓冲区错误漏洞，该漏洞源于HW_KEYMASTER模块存在缺少长度检查的漏洞，攻击者能通过构造恶意数据，造成越界访问。
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
II. Public POCs for CVE-2021-46839
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2021-46839 (2)
Same Patch Batch · Huawei · 2022-10-14 · 34 CVEs total
| CVE-2022-41594 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41583 | Huawei HarmonyOS 缓冲区错误漏洞 | |
| CVE-2022-41584 | Huawei HarmonyOS 缓冲区错误漏洞 | |
| CVE-2022-41585 | Huawei HarmonyOS 缓冲区错误漏洞 | |
| CVE-2022-41586 | Huawei HarmonyOS 安全漏洞 | |
| CVE-2022-41588 | Huawei HarmonyOS 安全漏洞 | |
| CVE-2022-41589 | Huawei HarmonyOS 安全漏洞 | |
| CVE-2022-41592 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41593 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41582 | Huawei HarmonyOS 安全漏洞 | |
| CVE-2022-41595 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41597 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41598 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41600 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41601 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41602 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2022-41603 | Huawei HarmonyOS 代码问题漏洞 | |
| CVE-2021-46840 | Huawei HarmonyOS 缓冲区错误漏洞 | |
| CVE-2022-41581 | Huawei HarmonyOS 安全漏洞 | |
| CVE-2022-41580 | Huawei HarmonyOS 缓冲区错误漏洞 |
Showing top 20 of 34 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-46839
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