Bug 677850 - (CVE-2011-0710) CVE-2011-0710 kernel: s390 task_show_regs infoleak
CVE-2011-0710 kernel: s390 task_show_regs infoleak
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 677852 677853 677854 677855
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Reported: 2011-02-15 23:02 EST by Eugene Teo (Security Response)
Modified: 2015-08-19 05:06 EDT (History)
13 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-07-29 09:50:30 EDT
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Description Eugene Teo (Security Response) 2011-02-15 23:02:39 EST
task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc/<pid>/status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs.

Upstream commit:
Comment 3 Eugene Teo (Security Response) 2011-03-11 01:21:59 EST

This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise MRG as it does not have support for the S390 architecture. A future kernel update in Red Hat Enterprise Linux 6 may address this flaw. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle,
https://access.redhat.com/support/policy/updates/errata/, therefore the fix for
this issue is not currently planned to be included in the future updates. This has been addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2011-0429.html.
Comment 4 errata-xmlrpc 2011-04-07 22:57:44 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0421 https://rhn.redhat.com/errata/RHSA-2011-0421.html
Comment 5 errata-xmlrpc 2011-04-12 14:20:12 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0429 https://rhn.redhat.com/errata/RHSA-2011-0429.html

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