CVE-2020-10067

Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory

HIGH
7.8
CVSS Score
Published: May 11, 2020 at 10:26 PM UTC
Updated: June 17, 2026 at 02:47 AM UTC
2 products affected across 2 vendorsZephyrZephyr

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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