Bug 2454185 (CVE-2026-5318)

Summary:	CVE-2026-5318 LibRaw: LibRaw: Denial of Service via out-of-bounds write in JPEG DHT Parser
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	germano.massullo
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
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Doc Text:	A flaw was found in LibRaw. A remote attacker could exploit this vulnerability by manipulating the 'bits[]' argument within the 'HuffTable::initval' function of the JPEG DHT Parser component. This manipulation leads to an out-of-bounds write, which can result in a Denial of Service (DoS) condition, making the affected system or application unavailable. An exploit for this vulnerability has been made public.	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:	2454221, 2454222, 2454225, 2454228, 2454231, 2454232, 2454233, 2454235
Bug Blocks:

Description OSIDB Bzimport 2026-04-02 03:01:45 UTC

A weakness has been identified in LibRaw up to 0.22.0. This impacts the function HuffTable::initval of the file src/decompressors/losslessjpeg.cpp of the component JPEG DHT Parser. This manipulation of the argument bits[] causes out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.22.1 will fix this issue. Patch name: a6734e867b19d75367c05f872ac26322464e3995. It is advisable to upgrade the affected component.