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cvelistNvidiaCVELIST:CVE-2021-34387
HistoryJun 21, 2021 - 9:35 p.m.

CVE-2021-34387

2021-06-2121:35:16
nvidia
www.cve.org
4
trustzone
vulnerability
access permissions
dram
tlk
kernel code

CVSS3

6.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

AI Score

7.2

Confidence

High

EPSS

0

Percentile

12.6%

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.

CNA Affected

[
  {
    "product": "NVIDIA Jetson TX1",
    "vendor": "NVIDIA",
    "versions": [
      {
        "status": "affected",
        "version": "All Jetson Linux versions prior to r32.5.1"
      }
    ]
  }
]

CVSS3

6.3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

AI Score

7.2

Confidence

High

EPSS

0

Percentile

12.6%

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