CVE-2022-39316

Publication date 17 November 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

FreeRDP is a free remote desktop protocol library and clients. In affected versions there is an out of bound read in ZGFX decoder component of FreeRDP. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it likely resulting in a crash. This issue has been addressed in the 2.9.0 release. Users are advised to upgrade.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
freerdp	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support
freerdp2	22.10 kinetic	Fixed 2.8.1+dfsg1-0ubuntu1.1
	22.04 LTS jammy	Fixed 2.6.1+dfsg1-3ubuntu2.3
	20.04 LTS focal	Fixed 2.2.0+dfsg1-0ubuntu0.20.04.4
	18.04 LTS bionic	Fixed 2.2.0+dfsg1-0ubuntu0.18.04.4
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Notes

mdeslaur

malicious server could cause client to crash

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
freerdp2	Upstream: e865c24

Severity score breakdown

Parameter	Value
Base score	5.7 · Medium
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

References

Related Ubuntu Security Notices (USN)

USN-5734-1
FreeRDP vulnerabilities
22 November 2022