CVE-2021-35465 Detail

Current Description

Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  3.4 LOW
Vector:  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://developer.arm.com/support/arm-security-updates Vendor Advisory 
https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-35465
NVD Published Date:
08/23/2021
NVD Last Modified:
09/23/2021
Source:
MITRE