title: Improper Validation of Array Index in FreeRDP
description: In FreeRDP less than or equal to 2.0.0, an outside controlled array index is used unchecked for data used as configuration for sound backend (alsa, oss, pulse, ...). The most likely outcome is a crash of the client instance followed by no or distorted sound or a session disconnect. If a user cannot upgrade to the patched version, a workaround is to disable sound for the session. This has been patched in 2.1.0.
problem types: CWE-129: Improper Validation of Array Index
affected:
{
vendor: FreeRDP
product: FreeRDP
versions:
version: <= 2.0.0, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
baseScore: 2.2
baseSeverity: LOW
]