Bug 2542275

Summary:	CVE-2026-100895 openarc: openarc: Denial of service via null pointer dereference in arc_parse_canon_t [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ganesh <gnaik>
Component:	openarc	Assignee:	Xavier Bachelot <xavier>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	minfrin, xavier
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["c609546e-95e7-4fe2-8471-dd622e18923c"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-28 15:29:27 UTC	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:	2542268

Description Ganesh 2026-09-28 02:40:17 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 flaw has been discovered in Trusted Domain Project OpenARC up to 1.0.0.Beta1. Impacted is the function arc_parse_canon_t in the library libopenarc/arc-canon.c of the component libopenarc. The manipulation results in null pointer dereference. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.0.0.Beta0 is recommended to address this issue. Upgrading the affected component is advised.

Comment 1 Xavier Bachelot 2026-09-28 15:29:27 UTC

Fixed in 1.0.0 beta 2, Fedora ships 1.3.0.