description:
Dell BIOS contain a Time-of-check Time-of-use vulnerability in BIOS. A local authenticated malicious user with physical access to the system could potentially exploit this vulnerability by using a specifically timed DMA transaction during an SMI in order to gain arbitrary code execution on the system.
problem types: CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
affected:
{
defaultStatus: unaffected
product: CPG BIOS
vendor: Dell
versions:
status: affected, version: All Versions
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: PHYSICAL
availabilityImpact: HIGH
baseScore: 6.9
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL