Bug 2496010 - CVE-2026-54257 magicmirror: Electron: Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow [fedora-all]
Summary: CVE-2026-54257 magicmirror: Electron: Buffer performs incorrect byte length c...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: magicmirror
Version: 45
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Davide Cavalca
QA Contact:
URL:
Whiteboard: {"flaws": ["807afcdd-6bb9-4146-8d69-0...
Depends On:
Blocks: CVE-2026-54257
TreeView+ depends on / blocked
 
Reported: 2026-07-01 15:30 UTC by Cedric Buissart
Modified: 2026-08-17 15:11 UTC (History)
1 user (show)

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


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Description Cedric Buissart 2026-07-01 15:30:05 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.

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will crash and some may perform incorrect buffer allocations in the Node.js Buffer API resulting in unexpected truncation or allocation. This vulnerability is fixed in 42.3.3.

Comment 1 Aoife Moloney 2026-08-17 15:11:25 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


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