Potential Memory Access Issue in Arm Cortex-M Series Products
CVE-2021-35465

3.4LOW

Key Information:

Vendor

Arm
Status
Cortex-m33 Firmware
Vendor
CVE Published:
23 August 2021

What is CVE-2021-35465?

Certain Arm products prior to August 23, 2021, exhibit a flaw in exception handling that could allow a Non-secure handler to improperly access parts of a Secure context during VLLDM instruction execution. This vulnerability specifically impacts a range of Arm Cortex-M series microcontrollers and Arm China STAR-MC1, potentially allowing unauthorized memory access, which could compromise the security integrity of the affected systems.

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References

https://developer.arm.com/support/arm-security-updates
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https://developer.arm.com/support/arm-security-updates/vl...
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CVSS V3.1

Score:
3.4
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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