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CVE-2022-39318

Published: 17 November 2022

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.

Notes

AuthorNote
mdeslaur
malicious server could cause client to crash

Priority

Low

Cvss 3 Severity Score

5.7

Score breakdown

Status

Package Release Status
freerdp
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(out of standard support)
upstream Needs triage

xenial Needed

freerdp2
Launchpad, Ubuntu, Debian
bionic
Released (2.2.0+dfsg1-0ubuntu0.18.04.4)
focal
Released (2.2.0+dfsg1-0ubuntu0.20.04.4)
jammy
Released (2.6.1+dfsg1-3ubuntu2.3)
kinetic
Released (2.8.1+dfsg1-0ubuntu1.1)
trusty Ignored
(out of standard support)
upstream Needs triage

xenial Ignored
(out of standard support)
Patches:
upstream: https://github.com/FreeRDP/FreeRDP/commit/80adde17ddc4b596ed1dae0922a0c54ab3d4b8ea

Severity score breakdown

Parameter Value
Base score 5.7
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H