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cve[email protected]CVE-2021-34387
HistoryJun 21, 2021 - 10:15 p.m.

CVE-2021-34387

2021-06-2122:15:07
CWE-276
web.nvd.nist.gov
37
5
arm trustzone
vulnerability
access permission
trusty
tlk
dram
nvd
cve-2021-34387

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.7%

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.

Affected configurations

NVD
Node
nvidiajetson_linuxRange<32.5.1
AND
nvidiajetson_tx1Match-

CNA Affected

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

Social References

More

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.7%

Related for CVE-2021-34387