Bug 2540633 - CVE-2026-93542 libXi: libXi: Denial of Service via out-of-bounds read during XI2 class parsing [fedora-all]
Summary: CVE-2026-93542 libXi: libXi: Denial of Service via out-of-bounds read during ...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: libXi
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Peter Hutterer
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["2b4700da-b9f2-44fc-a9d9-9...
Depends On:
Blocks: CVE-2026-93542
TreeView+ depends on / blocked
 
Reported: 2026-09-24 18:00 UTC by Vladimir Vasilev
Modified: 2026-09-24 18:00 UTC (History)
6 users (show)

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

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Description Vladimir Vasilev 2026-09-24 18:00:41 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.

An out-of-bounds read in libXi's XI2 class parsing via size_classes() and copy_classes() in libXi before 1.8.4 could be used by malicous servers to crash the X client.
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