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Message-ID: <Pine.GSO.4.64.1008161307540.1035@faron.mitre.org>
Date: Mon, 16 Aug 2010 13:09:55 -0400 (EDT)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: oss-security@...ts.openwall.com
cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request - kernel: integer overflow in
ext4_ext_get_blocks()
On Mon, 16 Aug 2010, Eugene Teo wrote:
> This was reported by a customer. Integer overflow flaws were found in
> ext4_ext_in_cache() and ext4_ext_get_blocks(). We managed to triggered the
> case in ext4_ext_get_blocks() but did not attempt to try the other. This can
> trigger a BUG() on certain configuration of ext4 file systems.
>
> Upstream commit:
> http://git.kernel.org/linus/731eb1a03a8445cde2cb23ecfb3580c6fa7bb690
>
> https://bugzilla.redhat.com/show_bug.cgi?id=624327
Use CVE-2010-3015
What does an attacker have to do to exploit this? Mount a crafted file
system?
- Steve
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