Bug 728023 (CVE-2011-2898)

Summary: CVE-2011-2898 kernel: af_packet: infoleak
Product: [Other] Security Response Reporter: Eugene Teo (Security Response) <eteo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: anton, arozansk, bhu, davej, dhoward, fhrbata, jkacur, kernel-mgr, kmcmartin, lgoncalv, lwang, plougher, rt-maint, 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: 2012-05-04 06:54:15 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: 728032, 728033, 728034, 748677, 761358    
Bug Blocks: 728021    

Description Eugene Teo (Security Response) 2011-08-04 00:22:31 UTC 
In 2.6.27, commit 393e52e33c6c2 (packet: deliver VLAN TCI to userspace) added a small information leak.

Add padding field and make sure its zeroed before copy to user.

Upstream commit:
http://git.kernel.org/linus/13fcb7bd322164c67926ffe272846d4860196dc6

introduced by commit 393e52e33c6c2 (v2.6.27-rc1)
Comment 3 Eugene Teo (Security Response) 2011-08-04 01:01:17 UTC 
Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not backport the upstream commit 393e52e3 that introduced this flaw. This has been addressed in Red Hat Enterprise Linux 6, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-1350.html and https://rhn.redhat.com/errata/RHSA-2012-0010.html.
Comment 4 errata-xmlrpc 2011-10-05 21:48:10 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:1350 https://rhn.redhat.com/errata/RHSA-2011-1350.html
Comment 5 Eugene Teo (Security Response) 2011-10-25 03:51:08 UTC 
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 748677]
Comment 7 errata-xmlrpc 2012-01-10 20:15:58 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