Bug 2521882 - CVE-2026-63409 deskflow: Deskflow: Client crash due to out-of-bounds read [epel-all]
Summary: CVE-2026-63409 deskflow: Deskflow: Client crash due to out-of-bounds read [ep...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: deskflow
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["f8db8e0a-a98b-49e9-948a-c...
Depends On:
Blocks: CVE-2026-63409
TreeView+ depends on / blocked
 
Reported: 2026-08-24 13:23 UTC by Vladimir Vasilev
Modified: 2026-08-24 13:23 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 13:23:50 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 1.26.0.296, a malicious Deskflow server can send an odd-length DSOP vector to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp, causing the missing value after the final option key to be read beyond the vector during the PacketStreamFilter::filterEvent to ServerProxy::handleData() to ServerProxy::parseHandshakeMessage() call chain and crash the connected client. This issue is fixed in continuous build 1.26.0.296.


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