CVE-2021-34387
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I. Basic Information for CVE-2021-34387
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
The ARM TrustZone Technology on which Trusty is based on contains a vulnerability in access permission settings where the portion of the DRAM reserved for TrustZone is identity-mapped by TLK with read, write, and execute permissions, which gives write access to kernel code and data that is otherwise mapped read only.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
NVIDIA TLK 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nvidia NVIDIA TLK是美国Nvidia公司的一个调度程序，与可信固件-A (TF-A) 配合使用。 NVIDIA TLK 存在访问控制错误漏洞，该漏洞源于Trusty所基于的 ARM® TrustZone 技术在访问权限设置中包含一个漏洞，其中为 TrustZone 保留的 DRAM 部分由具有读、写和执行权限的 TLK 进行身份映射，从而提供对内核代码和 以其他方式映射为只读的数据。
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 |
|---|---|---|---|---|
| NVIDIA | NVIDIA Jetson TX1 | All Jetson Linux versions prior to r32.5.1 | - |
II. Public POCs for CVE-2021-34387
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://nvidia.custhelp.com/app/answers/detail/a_id/5205x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-34387
Same Patch Batch · NVIDIA · 2021-06-21 · 4 CVEs total
| CVE-2021-34386 | 6.3 MEDIUM | NVIDIA TLK 输入验证错误漏洞 |
| CVE-2021-34388 | 6.3 MEDIUM | NVIDIA MB2 缓冲区错误漏洞 |
| CVE-2021-34389 | 5.0 MEDIUM | NVIDIA OTE 缓冲区错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-34387
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