Bug 2494481

Summary:	CVE-2026-46599 golang-x-perf: golang.org/x/image/tiff: Denial of Service via crafted PackBits-compressed data [fedora-all]
Product:	[Fedora] Fedora	Reporter:	jkelly <jkelly>
Component:	golang-x-perf	Assignee:	Alejandro Sáez Morollón <asm>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	45	CC:	asm, go-sig, jchaloup
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["94db21c7-8727-46fb-a749-a10327466698"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-04 16:59:27 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:	2483473

Description jkelly 2026-06-29 16:05:55 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 TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.

Comment 1 Aoife Moloney 2026-08-17 15:05:19 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Alejandro Sáez Morollón 2026-09-04 16:59:27 UTC

This package never imports golang.org/x/image/tiff.