6.7
MEDIUM
CVE-2021-34387
ARM TrustZonearence Write Privilege Escalation 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.

INFO

Published Date :

June 21, 2021, 10:15 p.m.

Last Modified :

June 29, 2021, 2:13 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2021-34387 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Nvidia jetson_tx1_firmware
2 Nvidia jetson_linux
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-34387.

URL Resource
https://nvidia.custhelp.com/app/answers/detail/a_id/5205 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-34387 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-34387 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jun. 29, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://nvidia.custhelp.com/app/answers/detail/a_id/5205 No Types Assigned https://nvidia.custhelp.com/app/answers/detail/a_id/5205 Vendor Advisory
    Added CWE NIST CWE-276
    Added CPE Configuration AND OR *cpe:2.3:o:nvidia:jetson_linux:*:*:*:*:*:*:*:* versions up to (excluding) 32.5.1 OR cpe:2.3:h:nvidia:jetson_tx1:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-34387 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-34387 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10264

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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