[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20151228064439.GA32586@eldamar.local>
Date: Mon, 28 Dec 2015 07:44:39 +0100
From: Salvatore Bonaccorso <carnil@...ian.org>
To: oss-security@...ts.openwall.com
Subject: Re: CVE Request: Linux kernel: privilege escalation
in user namespaces
Hi,
On Thu, Dec 17, 2015 at 02:39:58PM -0800, John Johansen wrote:
> Hi,
>
> I haven't seen CVE request for this one yet so,
>
> Jann Horn reported a privilege escalation in user namespaces to the
> lkml mailing list
>
> https://lkml.org/lkml/2015/12/12/259
>
> if a root-owned process wants to enter a user
> namespace for some reason without knowing who owns it and
> therefore can't change to the namespace owner's uid and gid
> before entering, as soon as it has entered the namespace,
> the namespace owner can attach to it via ptrace and thereby
> gain access to its uid and gid.
FTR: There is an iteration to the initial patch, submitted further
down in the thread: https://lkml.org/lkml/2015/12/25/71 but it is not
yet merged in Linus tree.
@MITRE CVE assignment team: Can a CVE be assigned or is something more
needed here?
Regards,
Salvatore
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.
