Bug 2373934 (CVE-2025-6274)

Summary:	CVE-2025-6274 wabt: WebAssembly wabt excess resource consumption
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	erack, gotiwari, jhorak, mvyas, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A denial-of-service vulnerability has been identified in WebAssembly's WebAssembly Binary Toolkit (wabt), specifically within the OnDataCount function. This flaw allows an attacker with local access to trigger runaway resource consumption (for example, excessive memory or CPU usage) by manipulating input provided to this function. This uncontrolled resource use can lead to the host operating system terminating the affected process, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2374060, 2374062
Bug Blocks:

Description OSIDB Bzimport 2025-06-19 20:01:10 UTC

A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been classified as problematic. Affected is the function OnDataCount of the file src/interp/binary-reader-interp.cc. The manipulation leads to resource consumption. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.