Bug 975406 - (CVE-2013-2188) CVE-2013-2188 kernel: fs: filp leak on ro filesystem
CVE-2013-2188 kernel: fs: filp leak on ro filesystem
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On: 920752 928683 1020725
Blocks: 975408
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Reported: 2013-06-18 07:57 EDT by Petr Matousek
Modified: 2015-02-16 10:54 EST (History)
27 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-06-18 08:01:35 EDT
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Description Petr Matousek 2013-06-18 07:57:12 EDT
A flaw was found in the way do_filp_open() function in the Linux kernel handled cleanup in case write access to a mount was denied. A local unprivileged user with acces to a read-only mount could use this flaw to crash the system.

This issue affected Red Hat Enterprise Linux 6 only. Upstream is not affected.


This issue was discovered by Mateusz Guzik of Red Hat.
Comment 1 Petr Matousek 2013-06-18 07:58:54 EDT

This issue did not affect the Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux MRG 2.

This issue was addressed in Red Hat Enterprise Linux 6 via RHSA-2013:0911 (https://rhn.redhat.com/errata/RHSA-2013-0911.html).

Upstream is not affected.

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