Bug 918009 (CVE-2013-1819)

Summary:	CVE-2013-1819 kernel: xfs: _xfs_buf_find oops on blocks beyond the filesystem end
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agordeev, bfoster, bhu, dchinner, dhoward, esammons, fhrbata, fs-maint, gansalmon, iboverma, itamar, jforbes, jkacur, jlieskov, jonathan, jrusnack, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, nobody, plougher, pmatouse, rt-maint, rvrbovsk, sforsber, williams
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:	2015-07-13 08:34:37 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:	888323, 918063, 918064, 918065, 918067, 918068, 918069, 918070
Bug Blocks:	905810

Description Prasad Pandit 2013-03-05 09:53:34 UTC

Linux kernel built with support for XFS file system is vulnerable to a NULL
pointer dereference flaw. This occurs while accessing blocks beyond the end
of the file system, possibly on a corrupted device.

A user able to mount the file system could use this flaw to crash the kernel, resulting in DoS.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/eb178619f930fa2ba2348de332a1ff1c66a31424

Comment 1 Jan Lieskovsky 2013-03-05 11:19:37 UTC

The CVE identifier of CVE-2013-1819 has been assigned to this issue:
  http://www.openwall.com/lists/oss-security/2013/03/05/10

Comment 4 Prasad Pandit 2013-03-05 12:18:53 UTC

Created kernel tracking bugs for this issue

Affects: fedora-all [bug 918070]

Comment 5 Prasad Pandit 2013-03-05 12:21:41 UTC

Statement:

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Due to it's limited impact, this issue is not currently planned to be addressed in Red Hat Enterprise Linux 6.

Comment 12 Fedora Update System 2013-03-22 00:19:08 UTC

kernel-3.8.3-103.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 errata-xmlrpc 2013-05-20 16:49:17 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0829 https://rhn.redhat.com/errata/RHSA-2013-0829.html