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Bug 1151108 - (CVE-2014-7975) CVE-2014-7975 Kernel: fs: umount denial of service
CVE-2014-7975 Kernel: fs: umount denial of service
Status: CLOSED CURRENTRELEASE
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=20141008,reported=2...
: Security
Depends On: 1152024 1152025
Blocks: 1150901
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Reported: 2014-10-09 11:24 EDT by Prasad J Pandit
Modified: 2017-08-02 03:47 EDT (History)
28 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2016-02-10 02:48:16 EST
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1842 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2017-08-01 14:22:09 EDT
Red Hat Product Errata RHSA-2017:2077 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2017-08-01 14:13:37 EDT

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Description Prasad J Pandit 2014-10-09 11:24:28 EDT 
Linux kernel file system implementation is vulnerable to a DoS flaw. It could occur by doing umount(2) call from within user name spaces.

An unprivileged user/process could use this flaw to render the system unusable by making file system inaccessible.

Upstream fix:
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  -> http://thread.gmane.org/gmane.linux.kernel.stable/109312

Reference:
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  -> http://seclists.org/oss-sec/2014/q4/229
Comment 1 Prasad J Pandit 2014-10-13 06:48:28 EDT 
Statement:

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
Comment 3 Prasad J Pandit 2014-10-13 07:10:08 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1152025]
Comment 5 Fedora Update System 2014-10-17 04:39:53 EDT 
kernel-3.16.6-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2014-10-19 09:21:31 EDT 
kernel-3.14.22-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2014-11-01 12:33:07 EDT 
kernel-3.17.1-300.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 errata-xmlrpc 2017-08-01 15:08:13 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2077 https://access.redhat.com/errata/RHSA-2017:2077
Comment 9 errata-xmlrpc 2017-08-02 03:47:06 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:1842
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