CVE-2022-39318 Division by zero in urbdrc channel in FreeRDP

2022-11-1600:00:00

CWE-20

CWE-369

GitHub_M

www.cve.org

cve-2022-39318; freerdp; input validation; urbdrc channel; remote desktop protocol; malicious server; upgrade; usb redirection.

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.1

Confidence

High

EPSS

0.001

Percentile

51.1%

JSON

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input validation in urbdrc channel. A malicious server can trick a FreeRDP based client to crash with division by zero. This issue has been addressed in version 2.9.0. All users are advised to upgrade. Users unable to upgrade should not use the /usb redirection switch.

CNA Affected

[
  {
    "vendor": "FreeRDP",
    "product": "FreeRDP",
    "versions": [
      {
        "version": "< 2.9.0",
        "status": "affected"
      }
    ]
  }
]