Bug 2124242 (CVE-2021-4216)

Summary:	CVE-2021-4216 mupdf: division-by-zero for zero width pages in muraster.c
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	lizhenbo, mjg
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Mupdf 1.20.0-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A Floating point exception (division-by-zero) flaw was found in Mupdf for zero width pages in muraster.c. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2124194

Description TEJ RATHI 2022-09-05 11:33:34 UTC

A Floating point exception (division-by-zero) flaw was found in Mupdf for zero width pages in muraster.c. It is fixed in Mupdf-1.20.0-rc1 upstream.

https://bugs.ghostscript.com/show_bug.cgi?id=704834
https://github.com/ArtifexSoftware/mupdf/commit/22c47acbd52949421f8c7cb46ea1556827d0fcbf

Comment 2 Michael J Gruber 2022-09-05 14:50:19 UTC

All currently supported Fedora versions carry mupdf 1.20.0 or higher, which contains the bugfix. Closing. Or not, because I am not allowed too ...