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Vulnerability · Published Nov 16, 2022 · Assigned by GitHub_M

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

Medium 4.8

In plain English

A medium-severity improper input validation in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)1.0%top 35.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8freerdp2:2.2.0-10.el8ALSA-2023:2851
AlmaLinux:9freerdp2:2.4.1-5.el9ALSA-2023:2326
AlmaLinux:8freerdp-devel2:2.2.0-10.el8ALSA-2023:2851
AlmaLinux:9freerdp-devel2:2.4.1-5.el9ALSA-2023:2326
AlmaLinux:8freerdp-libs2:2.2.0-10.el8ALSA-2023:2851
AlmaLinux:9freerdp-libs2:2.4.1-5.el9ALSA-2023:2326
AlmaLinux:8libwinpr2:2.2.0-10.el8ALSA-2023:2851
AlmaLinux:9libwinpr2:2.4.1-5.el9ALSA-2023:2326
AlmaLinux:8libwinpr-devel2:2.2.0-10.el8ALSA-2023:2851
AlmaLinux:9libwinpr-devel2:2.4.1-5.el9ALSA-2023:2326
Alpine:v3.20freerdp2.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.21freerdp2.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.22freerdp2.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.23freerdp2.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.24freerdp2.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.22freerdp22.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.23freerdp22.9.0-r0ALPINE-CVE-2022-39318
Alpine:v3.24freerdp22.9.0-r0ALPINE-CVE-2022-39318
Debian:12freerdp22.9.0+dfsg1-1DEBIAN-CVE-2022-39318
Rocky Linux:8freerdp2:2.2.0-10.el8RLSA-2023:2851
Ubuntu:22.04:LTSfreerdp22.6.1+dfsg1-3ubuntu2.3UBUNTU-CVE-2022-39318
Ubuntu:22.04:LTSfreerdp22.6.1+dfsg1-3ubuntu2.3USN-5734-1

Affected products (as reported)

VendorProductVersions
FreeRDP FreeRDP < 2.9.0

Weakness: CWE-20, CWE-369 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

References