Bug 681262 - (CVE-2011-1080) CVE-2011-1080 kernel: ebtables stack infoleak
CVE-2011-1080 kernel: ebtables stack 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=20110214,reported=20110228,sou...
: Security
Depends On: 681322 681323 681324 681325 681326 681327
Blocks:
  Show dependency treegraph
 
Reported: 2011-03-01 10:32 EST by Petr Matousek
Modified: 2015-07-31 02:38 EDT (History)
15 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-07-29 10:07:16 EDT
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Description Petr Matousek 2011-03-01 10:32:51 EST
Description of problem:
Struct tmp is copied from userspace.  It is not checked whether the "name"
field is NULL terminated.  This may lead to buffer overflow and passing
contents of kernel stack as a module name to try_then_request_module() and,
consequently, to modprobe commandline.  It would be seen by all userspace
processes.

References:
http://seclists.org/oss-sec/2011/q1/309
https://lkml.org/lkml/2011/2/14/51

Acknowledgements:                                                                

Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.
Comment 3 Eugene Teo (Security Response) 2011-04-06 20:37:42 EDT
Upstream commit:
http://git.kernel.org/linus/d846f711
Comment 4 errata-xmlrpc 2011-05-10 13:20:43 EDT
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2011:0500 https://rhn.redhat.com/errata/RHSA-2011-0500.html
Comment 5 errata-xmlrpc 2011-05-10 14:11:44 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0498 https://rhn.redhat.com/errata/RHSA-2011-0498.html
Comment 6 errata-xmlrpc 2011-05-31 10:06:29 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0833 https://rhn.redhat.com/errata/RHSA-2011-0833.html

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