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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