Bug 2521885 - CVE-2026-65976 deskflow: Deskflow: Denial of Service due to excessive clipboard data accumulation [epel-all]
Summary: CVE-2026-65976 deskflow: Deskflow: Denial of Service due to excessive clipboa...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: deskflow
Version: epel10
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["738a1c20-1efd-4fe5-8a07-2...
Depends On:
Blocks: CVE-2026-65976
TreeView+ depends on / blocked
 
Reported: 2026-08-24 13:24 UTC by Vladimir Vasilev
Modified: 2026-08-24 13:24 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Vladimir Vasilev 2026-08-24 13:24:07 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.

Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.300, a connected peer can send repeated DCLP DataChunk messages to ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp, causing the server path in src/lib/server/ClientProxy1_6.cpp or client path in src/lib/client/ServerProxy.cpp to append data beyond the DataStart declared size and configured clipboard limit before DataEnd validation, exhausting receiver memory. This issue is fixed in continuous build 1.26.0.300.


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