// For flags

CVE-2021-34387

 

Severity Score

6.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La ARM TrustZone Technology en la que se basa Trusty contiene una vulnerabilidad en la configuración de los permisos de acceso en la que la porción de la DRAM reservada para TrustZone es mapeada por TLK con permisos de lectura, escritura y ejecución, lo que da acceso de escritura al código y a los datos del kernel que, de otro modo, son mapeados sólo de lectura

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-06-09 CVE Reserved
  • 2021-06-21 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-276: Incorrect Default Permissions
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://nvidia.custhelp.com/app/answers/detail/a_id/5205 2021-06-29
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nvidia
Search vendor "Nvidia"
 Jetson Linux
Search vendor "Nvidia" for product "Jetson Linux"
 < 32.5.1
Search vendor "Nvidia" for product "Jetson Linux" and version " < 32.5.1"
-
Affected
in Nvidia
Search vendor "Nvidia"
 Jetson Tx1
Search vendor "Nvidia" for product "Jetson Tx1"
--
Safe