From: Patrick McHardy <kaber@trash.net>
To: Vasiliy Kulikov <segoon@openwall.com>
Cc: linux-kernel@vger.kernel.org, security@kernel.org,
"David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
netfilter-devel@vger.kernel.org, netfilter@vger.kernel.org,
coreteam@netfilter.org, netdev@vger.kernel.org
Subject: Re: [PATCH] ipv4: netfilter: ip_tables: fix infoleak to userspace
Date: Tue, 15 Mar 2011 13:36:31 +0100 [thread overview]
Message-ID: <4D7F5D4F.7030703@trash.net> (raw)
In-Reply-To: <1299780735-32607-1-git-send-email-segoon@openwall.com>
On 10.03.2011 19:12, Vasiliy Kulikov wrote:
> Structures ipt_replace, compat_ipt_replace, and xt_get_revision are
> copied from userspace. Fields of these structs that are
> zero-terminated strings are not checked. When they are used as argument
> to a format string containing "%s" in request_module(), some sensitive
> information is leaked to userspace via argument of spawned modprobe
> process.
>
> The first and the third bugs were introduced before the git epoch; the
> second was introduced in 2722971c (v2.6.17-rc1). To trigger the bug
> one should have CAP_NET_ADMIN.
Applied, thanks.
prev parent reply other threads:[~2011-03-15 12:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-10 18:12 [PATCH] ipv4: netfilter: ip_tables: fix infoleak to userspace Vasiliy Kulikov
2011-03-15 12:36 ` Patrick McHardy [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4D7F5D4F.7030703@trash.net \
--to=kaber@trash.net \
--cc=coreteam@netfilter.org \
--cc=davem@davemloft.net \
--cc=jmorris@namei.org \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=netfilter@vger.kernel.org \
--cc=security@kernel.org \
--cc=segoon@openwall.com \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.