Bug 2381836

Summary:	CVE-2025-53816 advancecomp: 7-Zip heap buffer overflow [fedora-42]
Product:	[Fedora] Fedora	Reporter:	Jon Moroney <jmoroney>
Component:	advancecomp	Assignee:	Ben Beasley <code>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	42	CC:	code, i, tdawson
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["660eda36-a526-4d44-a0bc-919ae9f2be7a"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-07-19 12:24:42 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:	2381766

Description Jon Moroney 2025-07-17 22:09:57 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.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams

Comment 1 Ben Beasley 2025-07-19 12:24:42 UTC

According to https://www.cve.org/CVERecord?id=CVE-2025-53816, this CVE arises from a defect in NCompress::NRar5::CDecoder. Since the NRar5 handler are not present in the forked-and-bundled 7-Zip code in advancecomp (and in fact, it does not contain any rar-format-related code at all), this CVE does not apply to advancecomp.