title: Integer Overflow In is_in_region Allows User Thread To Access Kernel Memory
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.
problem types: CWE-190 Integer Overflow or Wraparound
affected:
{
product: zephyr
vendor: zephyrproject-rtos
versions:
lessThan: unspecified, status: affected, version: 1.14.1, versionType: custom
lessThan: unspecified, status: affected, version: 2.1.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
version: 3.1
]