CVE-2021-3843
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I. Basic Information for CVE-2021-3843
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Lenovo ThinkPad 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo ThinkPad是中国联想（Lenovo）公司的一个便携式计算机。 Lenovo ThinkPad 的CSME配置中使用的SMI回调函数存在输入验证错误漏洞，攻击者可利用该漏洞执行任意代码。
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 |
|---|---|---|---|---|
| Lenovo | ThinkPad BIOS | various | - |
II. Public POCs for CVE-2021-3843
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://support.lenovo.com/us/en/product_security/LEN-72619x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3843
Same Patch Batch · Lenovo · 2021-11-12 · 7 CVEs total
| CVE-2021-3719 | 6.7 MEDIUM | ThinkCentre和ThinkStation输入验证错误漏洞 |
| CVE-2021-3599 | 6.7 MEDIUM | Lenovo ThinkPad 输入验证错误漏洞 |
| CVE-2021-3519 | 6.4 MEDIUM | ThinkStation 授权问题漏洞 |
| CVE-2021-3720 | 5.5 MEDIUM | Legion Phone Pro（L79031）和Legion Phone2 Pro（L70081）上时间天气系统小部件 安全漏洞 |
| CVE-2021-3786 | 4.4 MEDIUM | Lenovo ThinkPad 输入验证错误漏洞 |
| CVE-2021-3718 | 4.3 MEDIUM | Lenovo ThinkPad 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-3843
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