CVE-2020-16273: Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 01-12-2020 Published: 12-11-2020

CVE-2020-16273
Vulnerability Scoring

7.8
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: LOCAL
  • Privileges Required: Low Impact
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity: HIGH IMPACT
  • Availability: HIGH IMPACT

CVE-2020-16273 Vulnerability Summary

In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors. An attacker can cause a change to the stack pointer used by the Secure World from a non-secure application if the stack is not initialized. This vulnerability affects only the software that is based on Armv8-M processors with the Security Extension.

Access Complexity Graph for CVE-2020-16273

Impact Analysis for CVE-2020-16273

CVE-2020-16273: Detailed Information and External References

EPSS

0.00053

EPSS %

0.24040

References

0.00053

CWE

CWE-191

Vulnerable Configurations

  • cpe:2.3:h:arm:armv8-m:-:*:*:*:*:*:*:*
    cpe:2.3:h:arm:armv8-m:-:*:*:*:*:*:*:*
  • cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:*
    cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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