Bug 2554379

Summary:	CVE-2026-110716 unshield: unshield: Denial of Service via heap out-of-bounds read [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vladimir Vasilev <vvasilev>
Component:	unshield	Assignee:	Peter Lemenkov <lemenkov>
Status:	ON_QA ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	lemenkov
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["ad4778e5-732c-4c87-b213-06d9960fb045"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2552386

Description Vladimir Vasilev 2026-10-16 18:39:31 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.

unshield through 1.6.2 contains a heap out-of-bounds read vulnerability in unshield_get_file_table() that allows attackers to read past heap allocations via unchecked cabinet header offsets. Attackers can supply a crafted InstallShield cabinet with out-of-range file_table_offset or large file counts to crash the unshield tool or library consumers.

Comment 1 Fedora Update System 2026-10-18 16:13:39 UTC

FEDORA-2026-1a569ece37 (unshield-1.6.2-7.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1a569ece37

Comment 2 Fedora Update System 2026-10-18 16:13:39 UTC

FEDORA-2026-3a7914c436 (unshield-1.6.2-7.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a7914c436

Comment 3 Fedora Update System 2026-10-19 01:53:46 UTC

FEDORA-2026-d79a7cf59b has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d79a7cf59b`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d79a7cf59b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-10-19 02:13:53 UTC

FEDORA-2026-1a569ece37 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-1a569ece37`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1a569ece37

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-10-19 02:46:09 UTC

FEDORA-2026-3a7914c436 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3a7914c436`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a7914c436

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.