Bug 728023 - (CVE-2011-2898) CVE-2011-2898 kernel: af_packet: infoleak
CVE-2011-2898 kernel: af_packet: infoleak
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
public=20110607,reported=20110803,sou...
: Security
Depends On: 728032 728033 728034 748677 761358
Blocks: 728021
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Reported: 2011-08-03 20:22 EDT by Eugene Teo (Security Response)
Modified: 2015-07-31 02:42 EDT (History)
17 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-05-04 02:54:15 EDT
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Description Eugene Teo (Security Response) 2011-08-03 20:22:31 EDT
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) 2011-08-03 21:01:17 EDT
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 17:48:10 EDT
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) 2011-10-24 23:51:08 EDT
Created kernel tracking bugs for this issue

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

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