Bug 862877 - (CVE-2012-0957) CVE-2012-0957 kernel: uts: stack memory leak in UNAME26
CVE-2012-0957 kernel: uts: stack memory leak in UNAME26
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
impact=low,public=20121009,reported=2...
: Security
Depends On: 862881 864822 864824
Blocks: 862886
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Reported: 2012-10-03 15:58 EDT by Petr Matousek
Modified: 2016-03-04 06:19 EST (History)
9 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2013-08-24 09:25:52 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Petr Matousek 2012-10-03 15:58:06 EDT
Description of the problem:
The uname() syscall since 3.0 with the UNAME26 personality leaks kernel
stack memory contents.

Acknowledgements:

Red Hat would like to thank Kees Cook for reporting this issue.
Comment 4 Petr Matousek 2012-10-03 16:09:57 EDT
Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5.

This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6.

This issue did affect the version of Linux kernel as shipped with Red Hat Enterprise MRG 2.
Comment 6 Petr Matousek 2012-10-10 04:11:18 EDT
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 864824]
Comment 7 Petr Matousek 2012-10-10 04:12:33 EDT
Upstream proposed patch:

https://lkml.org/lkml/2012/10/9/550
Comment 8 John Kacur 2012-11-06 06:12:07 EST
This is the upstream patch
git describe --all --contains 2702b1526c7278c4d65d78de209a465d4de2885e
tags/v3.7-rc2~10^2~5
Comment 9 errata-xmlrpc 2012-12-04 14:59:18 EST
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2012:1491 https://rhn.redhat.com/errata/RHSA-2012-1491.html

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