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 J Pandit <prasad>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: 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: impact=low,public=20130407,reported=20130414,source=oss-security,cvss2=2.1/AV:L/AC:L/Au:N/C:P/I:N/A:N,rhel-5/kernel=affected,rhel-6/kernel=affected,mrg-2/realtime-kernel=affected,fedora-all/kernel=affected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-09 14:13:22 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Bug Depends On: 956096, 956097, 956099, 956100, 956102, 956103, 956104    
Bug Blocks: 858947    

Description Prasad J Pandit 2013-04-24 05:47:51 EDT
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 J Pandit 2013-04-24 05:50:01 EDT
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 J Pandit 2013-04-24 05:54:40 EDT
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 956104]
Comment 5 Fedora Update System 2013-04-26 20:08:25 EDT
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 2013-05-03 20:07:41 EDT
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 12:58:28 EDT
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 2013-07-09 23:56:24 EDT
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 13:21:35 EST
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