Bug 2510643 - CVE-2026-67299 freerdp2: FreeRDP: Denial of Service via crafted WindowIcon async message [fedora-all]
Summary: CVE-2026-67299 freerdp2: FreeRDP: Denial of Service via crafted WindowIcon as...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: freerdp2
Version: 45
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["8139e50b-3467-4db8-9ec7-5...
Depends On:
Blocks: CVE-2026-67299
TreeView+ depends on / blocked
 
Reported: 2026-08-03 13:51 UTC by Srikanth Balasubramanian
Modified: 2026-09-11 18:58 UTC (History)
4 users (show)

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
Clone Of:
Environment:
Last Closed: 2026-09-01 13:15:35 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

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.


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