CVE-2020-10067 - CVE House

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Status published High CVE-2020-10067

Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory

7.5 CVSS

Vulnerability Description

A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact would depend on the underlying system call and can range from denial of service to information leak to memory corruption resulting in code execution within the kernel. See NCC-ZEP-005 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

NCC Group for report

References

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Affected Vendor

zephyrproject-rtos

View all reports →

Affected Software

zephyr

Vulnerable Versions:

1.14.1, 2.1.0

Timeline

Official Publish: May 11th, 2020

Last Modified: September 16th, 2024

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control

T1499 Endpoint Denial of Service