Bug 1934478 (CVE-2021-27799)

Summary:	CVE-2021-27799 zint: stack-based buffer overflow
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	martin.gieseking
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-03-03 13:02:05 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:	1934479
Bug Blocks:

Description Marian Rehak 2021-03-03 10:43:14 UTC

ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code.

Reference:

http://zint.org.uk/Manual.aspx?type=p&page=3
http://zint.org.uk/Manual.aspx?type=p&page=4
http://zint.org.uk/Manual.aspx?type=p&page=5
https://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/
https://sourceforge.net/p/zint/tickets/218/

Comment 1 Marian Rehak 2021-03-03 10:43:41 UTC

Created zint tracking bugs for this issue:

Affects: fedora-all [bug 1934479]

Comment 2 Product Security DevOps Team 2021-03-03 13:02:05 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.