description: A potential vulnerability in the SMI callback function used in the legacy BIOS mode USB drivers in some legacy Lenovo and IBM System x servers may allow arbitrary code execution. Servers operating in UEFI mode are not affected.
problem types: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
affected:
{
product: System x
vendor: Lenovo
versions:
status: affected, version: various
}
{
product: System x
vendor: IBM
versions:
status: affected, version: various
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.4
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
solutions: Update system firmware to the version (or newer) indicated for your model in the Product Impact section in LEN-38625.