Bug 956094 (CVE-2013-3231)

Summary:	CVE-2013-3231 Kernel: llc: Fix missing msg_namelen update in llc_ui_recvmsg
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
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, anton, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, plougher, rt-maint, rvrbovsk, 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:	2014-06-09 18:13:22 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:	956096, 956097, 956099, 956100, 956102, 956103, 956104
Bug Blocks:	858947

Description Prasad Pandit 2013-04-24 09:47:51 UTC

Linux kernel built with Logical Link layer Control(CONFIG_LLC) protocol
support is vulnerable to an information leakage flaw. It occurs while receiving
messages via recvmsg(2) socket call.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
-------------
 -> http://git.kernel.org/linus/c77a4b9cffb6215a15196ec499490d116dfad181

Reference:
----------
 -> http://www.openwall.com/lists/oss-security/2013/04/14/3

Comment 1 Prasad Pandit 2013-04-24 09:50:01 UTC

Statement:

This issue affects the versions of the Linux kernel as shipped with
Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. Future kernel
updates for Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2 may
address this issue.

Comment 4 Prasad Pandit 2013-04-24 09:54:40 UTC

Created kernel tracking bugs for this issue

Affects: fedora-all [bug 956104]

Comment 5 Fedora Update System 2013-04-27 00:08:25 UTC

kernel-3.8.8-203.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2013-05-04 00:07:41 UTC

kernel-3.8.11-100.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 errata-xmlrpc 2013-05-20 16:58:28 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

Comment 8 errata-xmlrpc 2013-07-10 03:56:24 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:1034 https://rhn.redhat.com/errata/RHSA-2013-1034.html

Comment 9 errata-xmlrpc 2013-11-21 18:21:35 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1645 https://rhn.redhat.com/errata/RHSA-2013-1645.html