CVE-2022-39318

Division by zero in urbdrc channel in FreeRDP

Severity Score

5.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

FreeRDP es una librería y clientes de protocolos de escritorio remoto gratuitos. A las versiones afectadas de FreeRDP les falta validación de entrada en el canal `urbdrc`. Un servidor malicioso puede engañar a un cliente basado en FreeRDP para que falle con la división por cero. Este problema se solucionó en la versión 2.9.0. Se recomienda a todos los usuarios que actualicen. Los usuarios que no puedan actualizar no deben usar el interruptor de redirección `/usb`.

A division-by-zero issue was found in FreeRDP's libusb_udevice.c in the urbdrc channel. This flaw exists due to missing input validation in the urbdrc channel. A malicious server can pass specially crafted data to the client, causing a crash and denial of service.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-02 CVE Reserved
2022-11-16 CVE Published
2024-07-07 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-369: Divide By Zero

CAPEC

References (8)

URL	Tag	Source
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-387j-8j96-7q35	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/FreeRDP/FreeRDP/commit/80adde17ddc4b596ed1dae0922a0c54ab3d4b8ea	2024-01-12

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDOTAOJBCZKREZJPT6VZ25GESI5T6RBG	2024-01-12
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGQN3OWQNHSMWKOF4D35PF5ASKNLC74B	2024-01-12
https://security.gentoo.org/glsa/202401-16	2024-01-12
https://access.redhat.com/security/cve/CVE-2022-39318	2023-05-16
https://bugzilla.redhat.com/show_bug.cgi?id=2143644	2023-05-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freerdp Search vendor "Freerdp"		Freerdp Search vendor "Freerdp" for product "Freerdp"				< 2.9.0 Search vendor "Freerdp" for product "Freerdp" and version " < 2.9.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				36 Search vendor "Fedoraproject" for product "Fedora" and version "36"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected