Bug 1926949

Summary:	screen: Segmentation fault while displaying UTF-8 characters
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jridky, lnykryn, ovasik, phracek, vdolezal
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:	2021-02-10 12:23:58 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:	1926950, 1926952, 1927066
Bug Blocks:	1926951

Description Pedro Sampaio 2021-02-09 18:02:06 UTC

A flaw was found in GNU Screen. Displaying a sequence of certain UTF-8 characters can lead to a crash and denial of service. 

References:

https://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.html
https://www.openwall.com/lists/oss-security/2021/02/09/3

Comment 1 Pedro Sampaio 2021-02-09 18:02:46 UTC

Created screen tracking bugs for this issue:

Affects: epel-8 [bug 1926952]
Affects: fedora-all [bug 1926950]

Comment 2 Pedro Sampaio 2021-02-10 12:23:58 UTC


*** This bug has been marked as a duplicate of bug 1927062 ***