Bug 1652600 (CVE-2018-19211)

Summary:	CVE-2018-19211 ncurses: Null pointer dereference at function _nc_parse_entry in parse_entry.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, dbaker, jokerman, mlichvar, sthangav, trankin
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 vulnerability was found in GNU ncurses due to a NULL pointer dereference in the _nc_parse_entry function within parse_entry.c, where an attacker could exploit this flaw by persuading a victim to open a specially crafted file, leading to a crash and causing a denial of service condition.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-11-27 06:48:34 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:	1576121, 1652602
Bug Blocks:	1652603

Description Pedro Sampaio 2018-11-22 13:07:18 UTC

In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack.

References:

https://bugzilla.redhat.com/show_bug.cgi?id=1643754

Comment 1 Pedro Sampaio 2018-11-22 13:07:43 UTC

Created ncurses tracking bugs for this issue:

Affects: fedora-all [bug 1652602]

Comment 2 Huzaifa S. Sidhpurwala 2018-11-27 06:48:34 UTC

Given that it does not seem easily reproducible and could very well be a crash due to crafted input values, it is more appropriate to wontfix this.