| commit | ebb12d3d3feb70061157ec5f71d7366f7b6e6dd9 | |
| author | Vasiliy Kulikov <segoon@openwall.com> | |
| Tue, 15 Mar 2011 12:36:05 +0000 (15 13:36 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 14 Apr 2011 20:02:31 +0000 (14 13:02 -0700) | ||
| tree | 7abd31e1fd226f91eee4d9b2d62663a3c5cde2ff | treesnapshot (tar.gz zip) |
| parent | fc50df845604fa6802b693fda447f598e23e12c2 | commitdiff |
netfilter: ip_tables: fix infoleak to userspace
commit 78b79876761b86653df89c48a7010b5cbd41a84a upstream.
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.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 78b79876761b86653df89c48a7010b5cbd41a84a upstream.
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.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| net/ipv4/netfilter/ip_tables.c | diffblobblamehistory |