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CVE-2021-34387

Quick assessment

Affected
NVIDIA NVIDIA Jetson TX1
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.

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。

CVSS 6.3 · Medium EPSS 0.21% · P10
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I. Basic Information for CVE-2021-34387

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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

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III. Intelligence Information for CVE-2021-34387

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Other References for CVE-2021-34387 (1)

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

Same product: NVIDIA Jetson TX1
Same vendor: NVIDIA

V. Comments for CVE-2021-34387

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