Bug 2358165

Summary:	CVE-2025-3409 stb: Nothings stb stack-based overflow [epel-8]
Product:	[Fedora] Fedora EPEL	Reporter:	Michal Findra <mfindra>
Component:	stb	Assignee:	Ben Beasley <code>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel8	CC:	code, mhroncok
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["c90a9321-8927-4dab-bc7b-28fec33f91ce"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-04-08 11:01:42 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:	2358138

Description Michal Findra 2025-04-08 06:03:56 UTC

More information about this security flaw is available in the following bug:

https://bugzilla.redhat.com/show_bug.cgi?id=2358138

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.

Comment 1 Ben Beasley 2025-04-08 11:01:42 UTC

The vulnerability report contains little detail. However, the function stb_include_string appears in the stb_include.h library. Significant concerns were noted with the design of this library during package review, so we have never shipped a copy of it:

- It uses strcat/strcpy into a fixed-length buffer that is assumed (but not proven) to be large enough for all possible uses
- It ignores I/O errors (possibly leading to undefined behavior from reading uninitialized memory), and so on.

Since we don’t ship stb_include, we can’t be affected.