Bug 2043393 (CVE-2021-4214)

Summary:	CVE-2021-4214 libpng: hardcoded value leads to heap-overflow
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caswilli, fjansen, jburrell, jnakfour, jwong, kaycoth, micjohns, mmuzila, nforro, phracek, sthirugn, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-01-27 09:00:54 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:	2043394

Description Dhananjay Arunesh 2022-01-21 07:24:57 UTC

A vulnerability was reported in Libpng where the input buffer might not have the same length as the pre-defined value hardcoded in the pngimage so that the index is out of bound in the later loop.

References:
https://github.com/glennrp/libpng/issues/302

Comment 3 Product Security DevOps Team 2022-01-27 09:00:51 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-4214