Re: [PATCH] ipv6: netfilter: ip6_tables: fix infoleak to userspace

[Patrick McHardy]

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.
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