Bug 1195248 (CVE-2015-0274)

Summary:	CVE-2015-0274 kernel: xfs: replacing remote attributes memory corruption
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
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, dchinner, dhoward, esammons, esandeen, fhrbata, iboverma, jkacur, jross, jrusnack, kernel-mgr, lgoncalv, lwang, matt, mcressma, mguzik, nmurray, pholasek, plougher, rvrbovsk, security-response-team, vkaigoro, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A flaw was found in the way the Linux kernel's XFS file system handled replacing of remote attributes under certain conditions. A local user with access to XFS file system mount could potentially use this flaw to escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-24 06:19:34 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:	1145837, 1195251
Bug Blocks:	1176616

Description Petr Matousek 2015-02-23 13:31:44 UTC

A flaw was found in the way the Linux kernel's XFS file system handled
replacing of remote attributes under certain conditions.

A local user with access to XFS file system mount could potentially use this
flaw to escalate their privileges on the system.

Fixed by:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59

Introduced by:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e461fcb

Acknowledgements:

Red Hat would like to thank Eric Windisch of the Docker project for reporting
this issue.

Comment 2 Petr Matousek 2015-02-23 13:35:54 UTC

Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise 5 and 6. This issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future kernel updates for the respective releases may address this issue.

Comment 4 errata-xmlrpc 2015-03-05 13:05:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0290 https://rhn.redhat.com/errata/RHSA-2015-0290.html

Comment 5 errata-xmlrpc 2015-03-17 14:41:28 UTC

This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2015:0694 https://rhn.redhat.com/errata/RHSA-2015-0694.html