Bug 2560939 - CVE-2026-109942 freerdp: FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet [fedora-43]
Summary: CVE-2026-109942 freerdp: FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: freerdp
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Simone Caronni
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["bec3fca5-8e4c-4ff3-9308-3...
Depends On:
Blocks: CVE-2026-109942
TreeView+ depends on / blocked
 
Reported: 2026-10-26 16:40 UTC by Srikanth Balasubramanian
Modified: 2026-11-02 15:09 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-11-02 15:09:32 UTC
Type: ---
Embargoed:

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Description Srikanth Balasubramanian 2026-10-26 16:40:30 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 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-byte CLOSE_CHANNEL header to crash a connecting FreeRDP client.
Comment 1 Ondrej Holy 2026-11-02 15:09:32 UTC 
Fixed in FreeRDP 3.32.0 (upstream). Fedora 43, 44, 45 and Rawhide ship freerdp 3.32.2, which contains the fix. Closing as ERRATA.
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