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] ipv6: netfilter: ip6_tables: fix infoleak to userspace
Date: Tue, 15 Mar 2011 13:37:44 +0100 [thread overview]
Message-ID: <4D7F5D98.1060105@trash.net> (raw)
In-Reply-To: <1299780827-344-1-git-send-email-segoon@openwall.com>
On 10.03.2011 19:13, Vasiliy Kulikov wrote:
> Structures ip6t_replace, compat_ip6t_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 bug was introduced before the git epoch; the second was
> introduced in 3bc3fe5e (v2.6.25-rc1); the third is introduced by
> 6b7d31fc (v2.6.15-rc1). To trigger the bug one should have
> CAP_NET_ADMIN.
Also applied, thanks Vasiliy.
prev parent reply other threads:[~2011-03-15 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-10 18:13 [PATCH] ipv6: netfilter: ip6_tables: fix infoleak to userspace Vasiliy Kulikov
2011-03-15 12:37 ` Patrick McHardy [this message]
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