Bug 2565117

Summary:	CVE-2026-116124 libgsf: libgsf: Arbitrary code execution via heap-based buffer overflow in OLE2 parser [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vladimir Vasilev <vvasilev>
Component:	libgsf	Assignee:	Gwyn Ciesla <gwync>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	rawhide	CC:	gnome-sig, gwync, marcandre.lureau, mclasen, pbonzini, rstrode
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["e342366d-6ea5-41f6-b9b2-e4dc997fa444"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Bug Blocks:	2560528

Description Vladimir Vasilev 2026-11-02 11:10:24 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.

A security vulnerability has been detected in GNOME libgsf up to 1.14.60. The impacted element is the function ole_info_read_metabat of the file gsf/gsf-infile-msole.c of the component OLE2 Parser. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The identifier of the patch is a8e25560b74f84c3f86df6ca0ac59195fa5af68a. It is recommended to apply a patch to fix this issue.