Bug 753341 (CVE-2011-4132)

Summary:	CVE-2011-4132 kernel: jbd/jbd2: invalid value of first log block leads to oops
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anton, arozansk, bhu, davej, dchinner, dhoward, eguan, esandeen, fhrbata, gansalmon, itamar, jkacur, jonathan, jwboyer, kernel-maint, kernel-mgr, lczerner, lgoncalv, lwang, madhu.chinakonda, plougher, rt-maint, rwheeler, sforsber, tcallawa, vgoyal, 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:	2013-04-11 17:36:59 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:	693981, 706810, 753343, 753344, 753345, 753346, 761379
Bug Blocks:	753351

Description Petr Matousek 2011-11-11 22:23:06 UTC

A flaw was found in the way Linux kernel's Journaling Block Device (JBD) handled invalid log first block value. An attacker able to mount malicious ext3 or ext4 image could use this flaw to crash the system.

Upstream commit:
8762202dd0d6e46854f786bdb6fb3780a1625efe

Comment 3 Petr Matousek 2011-11-11 22:34:36 UTC

Created kernel tracking bugs for this issue

Affects: fedora-all [bug 753346]

Comment 5 Petr Matousek 2011-11-11 22:44:29 UTC

Statement:

This issue affects the Linux kernel as shipped with Red Hat Enterprise Linux 4,
5, 6, and Red Hat Enterprise MRG. This has been addressed in Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2012-0007.html, https://rhn.redhat.com/errata/RHSA-2012-0350.html, and https://rhn.redhat.com/errata/RHSA-2012-0010.html. Red Hat
Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle,
https://access.redhat.com/support/policy/updates/errata/, therefore the fix for
this issue is not currently planned to be included in the future updates.

Comment 7 Fedora Update System 2011-11-29 00:22:03 UTC

kernel-2.6.35.14-106.fc14 has been pushed to the Fedora 14 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 errata-xmlrpc 2012-01-10 20:09:21 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:0007 https://rhn.redhat.com/errata/RHSA-2012-0007.html

Comment 10 errata-xmlrpc 2012-01-10 20:16:59 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2012:0010 https://rhn.redhat.com/errata/RHSA-2012-0010.html

Comment 11 errata-xmlrpc 2012-02-23 20:23:31 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2012:0333 https://rhn.redhat.com/errata/RHSA-2012-0333.html

Comment 12 errata-xmlrpc 2012-03-06 18:44:49 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0350 https://rhn.redhat.com/errata/RHSA-2012-0350.html