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

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Date: Sat, 4 Feb 2017 21:35:41 -0500
From: <cve-assign@...re.org>
To: <wmealing@...hat.com>
CC: <cve-assign@...re.org>, <oss-security@...ts.openwall.com>
Subject: Re: Local DoS: Linux Kernel EXT4 Memory Corruption / SLAB-Out-of-Bounds Read

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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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