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CVE-2022-39320

Published: 17 November 2022

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP may attempt integer addition on too narrow types leads to allocation of a buffer too small holding the data written. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and 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

4.6

Score breakdown

Status

Package Release Status
freerdp
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(out of standard support)
upstream Needs triage

xenial Needs triage

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/68c6a8c1878b5294aecb04d5e27531a720b3793f

Severity score breakdown

Parameter Value
Base score 4.6
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L