Bug 1134099 (CVE-2014-5471, CVE-2014-5472)

Summary:	CVE-2014-5471 CVE-2014-5472 kernel: isofs: unbound recursion when processing relocated directories
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	agordeev, aquini, bhu, dhoward, esammons, fhrbata, Frodox, fweimer, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mchehab, mcressma, mguzik, nmurray, pholasek, plougher, pmatouse, ppandit, rt-maint, rvrbovsk, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-10 07:00:25 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:	1142268, 1142269, 1142270, 1142271, 1142272, 1196304, 1196305, 1196306
Bug Blocks:	1134101

Description Martin Prpič 2014-08-26 20:24:49 UTC

It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system.

Upstream fix:
------------
   -> https://git.kernel.org/linus/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4

CVE request:
------------
  -> http://seclists.org/oss-sec/2014/q3/450

Comment 1 Martin Prpič 2014-08-27 09:03:00 UTC

MITRE assigned two CVE numbers, CVE-2014-5471 and CVE-2014-5472, for this issue. More details here:

http://seclists.org/oss-sec/2014/q3/452

Comment 2 Josh Boyer 2014-08-28 00:36:03 UTC

Fedora has patched this on all relevant branches now.

Comment 3 Fedora Update System 2014-08-30 03:58:15 UTC

kernel-3.15.10-201.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 Prasad Pandit 2014-09-16 13:16:28 UTC

Statement:

This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5. Future kernel updates for Red Hat Enterprise Linux 5 may address this issue.

Comment 8 Fedora Update System 2014-09-23 05:00:18 UTC

kernel-3.16.2-300.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 errata-xmlrpc 2014-09-29 19:41:44 UTC

This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:1318 https://rhn.redhat.com/errata/RHSA-2014-1318.html

Comment 10 Fedora Update System 2014-09-30 01:59:12 UTC

kernel-3.14.19-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 11 Martin Prpič 2014-09-30 10:48:05 UTC

IssueDescription CVE-2014-5472:

It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system.

IssueDescription CVE-2014-5471:

It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags. An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system.

Comment 12 errata-xmlrpc 2014-12-16 19:13:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:1997 https://rhn.redhat.com/errata/RHSA-2014-1997.html

Comment 13 errata-xmlrpc 2015-01-28 19:04:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0102 https://rhn.redhat.com/errata/RHSA-2015-0102.html

Comment 15 errata-xmlrpc 2015-03-17 14:40:04 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.2 AUS

Via RHSA-2015:0695 https://rhn.redhat.com/errata/RHSA-2015-0695.html

Comment 16 errata-xmlrpc 2015-04-07 15:12:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 EUS - Server and Compute Node Only

Via RHSA-2015:0782 https://rhn.redhat.com/errata/RHSA-2015-0782.html

Comment 17 errata-xmlrpc 2015-04-14 13:09:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.4 AUS - Server Only

Via RHSA-2015:0803 https://rhn.redhat.com/errata/RHSA-2015-0803.html