[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Fri, 25 Oct 2013 14:07:31 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: Linux kernel: net: memory corruption
with UDP_CORK and UFO
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 10/25/2013 08:11 AM, P J P wrote:
> Hello,
>
> Linux kernel built with an Ethernet driver(ex virtio-net) which has UDP
> Fragmentation Offload(UFO) feature ON is vulnerable to a memory
> corruption flaw when UDP_CORK socket option is set. It could occur when
> sending large messages, wherein all messages are not greater than
> maximum transfer unit(MTU) of the underlying medium.
>
> An unprivileged user/program could use this flaw to crash the kernel
> resulting in DoS, or potentially execute arbitrary code to escalate
> privileges to gain root access to a system.
>
> Upstream fix:
> -------------
> -> http://patchwork.ozlabs.org/patch/285292/
>
> Reference:
> ----------
> -> https://bugzilla.redhat.com/show_bug.cgi?id=1023477
>
>
> Thank you.
> --
> Prasad J Pandit / Red Hat Security Response Team
Please use CVE-2013-4470 for this issue.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=Eg+0
-----END PGP SIGNATURE-----
Powered by blists - more mailing lists
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.
