CVE-2020-11041 Improper Validation of Array Index in FreeRDP

2020-05-2900:00:00

CWE-129

GitHub_M

www.cve.org

CVSS3

2.2

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

AI Score

5.5

Confidence

Low

EPSS

0.001

Percentile

51.1%

JSON

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.

CNA Affected

[
  {
    "vendor": "FreeRDP",
    "product": "FreeRDP",
    "versions": [
      {
        "version": "<= 2.0.0",
        "status": "affected"
      }
    ]
  }
]