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Re: Local DoS: Linux Kernel EXT4 Memory Corruption / SLAB-Out-of-Bounds Read


From: <cve-assign () mitre org>
Date: Sat, 4 Feb 2017 21:35:41 -0500

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http://seclists.org/fulldisclosure/2016/Nov/75
https://bugzilla.redhat.com/show_bug.cgi?id=1332503

OS-S Security Advisory 2016-22

I'd like to ask for a CVE for the flaw the EXT4 filesystem as described as:

Mounting a crafted EXT4 image read-only leads to a memory corruption and
SLAB-Out-of-Bounds Reads (according to KASAN).  Since the mounting
procedure is a privileged operation, an attacker is probably not able
to trigger this vulnerability on the commandline.
Instead the automatic mounting feature of the GUI via a crafted
USB-device is required.

https://bugzilla.suse.com/show_bug.cgi?id=1023377

https://bugzilla.redhat.com/show_bug.cgi?id=1395190
http://www.spinics.net/lists/linux-ext4/msg54572.html

Introduced in:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=952fc18ef9ec707ebdc16c0786ec360295e5ff15
(first in v3.6-rc1...)

Fix:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1fe
(first in v4.10-rc1)

Use CVE-2016-10208.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
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