oss-security - CVE-2009-0024 kernel: local privilege escalation in sys_remap_file

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Date: Mon, 12 Jan 2009 12:57:55 +0800
From: "Eugene Teo" <eugeneteo@...nel.sg>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>, "Greg KH" <greg@...ah.com>
Subject: CVE-2009-0024 kernel: local privilege escalation in sys_remap_file_pages

Nelson Elhage reported that it is possible for a local, unprivileged
user to cause a denial of service, or gain root privileges by abusing
a flaw in sys_remap_file_pages().

The bug was introduced by commit 3ee6dafc, and it was fixed in
8a459e44. This was also fixed in 2.6.24 -stable tree with 7e3c396b.

We have assigned CVE-2009-0024 to this issue.

Take note that this does not affect the latest kernels as shipped with
Red Hat Enterprise Linux 5, Red Hat Enterprise MRG, Fedora 8 to 10,
Ubuntu 8.04 (Hardy) (Thanks Kees), and Debian GNU/Linux (Thanks Dann).

Thanks, Eugene

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.