Bug 2510643

Summary:	CVE-2026-67299 freerdp2: FreeRDP: Denial of Service via crafted WindowIcon async message [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Srikanth Balasubramanian <sbalasub>
Component:	freerdp2	Assignee:	Neal Gompa <ngompa13>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	45	CC:	negativo17, ngompa13, oholy, tdawson
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["8139e50b-3467-4db8-9ec7-51412e0a7f87"]}
Fixed In Version:	freerdp2-2.11.7-16.fc46 freerdp2-2.11.7-16.fc44 freerdp2-2.11.7-16.fc43 freerdp2-2.11.7-16.fc45	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-01 13:15:35 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2509985

Description Srikanth Balasubramanian 2026-08-03 13:51:49 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

FreeRDP before 3.29.0 contains a client-side heap use-after-free in the async update message proxy for WINDOW_ICON_ORDER when AsyncUpdate is enabled (e.g. xfreerdp /async-update). In update_message_WindowIcon() a shallow CopyMemory() overwrites a freshly allocated lParam->iconInfo with the parser-owned windowIcon->iconInfo pointer. After the parser callback returns, update_recv_window_info_order() frees window_icon.iconInfo, but the queued async message still retains and later dispatches that stale pointer. A malicious or compromised RDP server sending a crafted RAIL Window Alternate Secondary Order with WINDOW_ORDER_ICON can trigger use-after-free, leading to memory corruption and client crash.

Comment 1 Aoife Moloney 2026-08-17 15:45:43 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Fedora Update System 2026-09-01 13:11:20 UTC

FEDORA-2026-1c0deda1e7 (freerdp2-2.11.7-16.fc46) has been submitted as an update to Fedora 46.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1c0deda1e7

Comment 3 Fedora Update System 2026-09-01 13:15:35 UTC

FEDORA-2026-1c0deda1e7 (freerdp2-2.11.7-16.fc46) has been pushed to the Fedora 46 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2026-09-01 13:27:15 UTC

FEDORA-2026-20b7d49f70 (freerdp2-2.11.7-16.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-20b7d49f70

Comment 5 Fedora Update System 2026-09-01 13:27:59 UTC

FEDORA-2026-d91338eea8 (freerdp2-2.11.7-16.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d91338eea8

Comment 6 Fedora Update System 2026-09-01 13:28:08 UTC

FEDORA-2026-3fe3e3ae10 (freerdp2-2.11.7-16.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3fe3e3ae10

Comment 7 Fedora Update System 2026-09-02 01:14:12 UTC

FEDORA-2026-d91338eea8 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d91338eea8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d91338eea8

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-09-02 02:03:32 UTC

FEDORA-2026-3fe3e3ae10 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3fe3e3ae10`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3fe3e3ae10

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2026-09-02 02:23:24 UTC

FEDORA-2026-20b7d49f70 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-20b7d49f70`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-20b7d49f70

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Fedora Update System 2026-09-10 01:00:14 UTC

FEDORA-2026-d91338eea8 (freerdp2-2.11.7-16.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-09-10 01:14:01 UTC

FEDORA-2026-3fe3e3ae10 (freerdp2-2.11.7-16.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 12 Fedora Update System 2026-09-11 18:58:29 UTC

FEDORA-2026-20b7d49f70 (freerdp2-2.11.7-16.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.