Bug 518132 - (CVE-2009-2849) CVE-2009-2849 kernel: md: NULL pointer deref when accessing suspend_* sysfs attributes
CVE-2009-2849 kernel: md: NULL pointer deref when accessing suspend_* sysfs a...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,source=osssecurity,re...
: Security
Depends On: 518134 518135 518136
Blocks:
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Reported: 2009-08-19 00:43 EDT by Eugene Teo (Security Response)
Modified: 2016-03-04 07:49 EST (History)
13 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-03-28 04:45:14 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Eugene Teo (Security Response) 2009-08-19 00:43:33 EDT
Description of problem:
It is possible to modify one of the md/ sysfs files - suspend_lo or suspend_hi when the array is not active. NOTE: this is only a vulnerability when sysfs files are writable by an attacker. It is not writable by default.

This was introduced in commit e464eafd (v2.6.17-rc1).

Upstream commit:
http://git.kernel.org/linus/b8d966efd9a46a9a35beac50cbff6e30565125ef
Comment 2 Fedora Update System 2009-08-26 01:12:13 EDT
kernel-2.6.29.6-217.2.16.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/kernel-2.6.29.6-217.2.16.fc11
Comment 3 Fedora Update System 2009-08-26 22:19:01 EDT
kernel-2.6.29.6-217.2.16.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 errata-xmlrpc 2009-09-29 15:33:35 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:1455 https://rhn.redhat.com/errata/RHSA-2009-1455.html
Comment 5 errata-xmlrpc 2009-11-03 13:21:32 EST
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2009:1540 https://rhn.redhat.com/errata/RHSA-2009-1540.html

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