title: Buffer Overflow Vulnerability in Western Digital My Cloud Home and ibi devices
description: A buffer overflow vulnerability was discovered on firmware version validation that could lead to an unauthenticated remote code execution in Western Digital My Cloud Home, My Cloud Home Duo and SanDisk ibi devices. An attacker would require exploitation of another vulnerability to raise their privileges in order to exploit this buffer overflow vulnerability.
This issue affects My Cloud Home and My Cloud Home Duo: before 9.4.0-191; ibi: before 9.4.0-191.
problem types: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
affected:
{
defaultStatus: unaffected
platforms: Linux
product: My Cloud Home and My Cloud Home Duo
vendor: Western Digital
versions:
lessThan:  9.4.0-191, status: affected, version: 0, versionType: custom
}
{
defaultStatus: unaffected
platforms: Linux
product: ibi
vendor: SanDisk
versions:
lessThan:  9.4.0-191, status: affected, version: 0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 1.9
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions:
For My Cloud Home, My Cloud Home Duo and SanDisk ibi
devices will be automatically updated to reflect the latest
firmware version.