Bug 1107966 (CVE-2014-4014)

Summary:	CVE-2014-4014 Kernel: possible privilege escalation in user namespace
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	agordeev, aquini, bhu, carnil, dhoward, ebiederm, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mchehab, mcressma, nobody, npajkovs, pholasek, plougher, pmatouse, rt-maint, rvrbovsk, toracat, williams, wnix
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-10 08:14:08 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:	1109836, 1109837
Bug Blocks:	1107938

Description Prasad Pandit 2014-06-11 07:15:28 UTC

Linux kernel built with the user namespaces(CONFIG_USER_NS) is vulnerable to a
potential privilege escalation flaw.

An unprivileged user/process could use this flaw to escalate their privileges
on a system.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/23adbe12ef7d3d4195e80800ab36b37bee28cd03

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2014/06/10/4

Comment 2 Prasad Pandit 2014-06-16 12:46:31 UTC

Statement:

This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.

Comment 3 Prasad Pandit 2014-06-16 12:59:12 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1109836]

Comment 5 Fedora Update System 2014-06-18 22:25:39 UTC

kernel-3.14.8-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2014-06-22 23:55:03 UTC

kernel-3.14.8-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.