CVE-2020-16273

Published: Nov 12, 2020Modified: Nov 21, 2024

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Arm: Armv8 M Firmware

1 product

Armv8 M Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arm Armv8 M Firmware	All versions

Running on/with	Platform Versions
Arm Armv8 M	All versions

Related CWEs

Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

References (2)

https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing

Source: cve@mitre.org

Vendor Advisory

https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.