CVE-2020-16273

CVSS V2 High 7.2 CVSS V3 High 7.8
Description
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.
Overview
  • CVE ID
  • CVE-2020-16273
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-12T19:15:14
  • Last Modified Date
  • 2020-12-01T19:37:45
Weakness Enumerations
CWE URL
CWE-191 http://cwe.mitre.org/data/definitions/191.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:arm:armv8-m_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arm:armv8-m:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-16273
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16273
History
Created Old Value New Value Data Type Notes
2022-05-10 07:31:44 Added to TrackCVE
2022-12-05 16:45:36 2020-11-12T19:15Z 2020-11-12T19:15:14 CVE Published Date updated
2022-12-05 16:45:36 2020-12-01T19:37:45 CVE Modified Date updated
2022-12-05 16:45:36 Analyzed Vulnerability Status updated