| commit | e5c7f66bba19bf0029674e39a1b35dd4fba7d4d4 | |
| author | Vasiliy Kulikov <segoon@openwall.com> | |
| Tue, 15 Mar 2011 12:37:13 +0000 (15 13:37 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 14 Apr 2011 23:53:05 +0000 (14 16:53 -0700) | ||
| tree | 0e0417f8163bd46aa45726fd622a332361b00e78 | treesnapshot (tar.gz zip) |
| parent | 4bb6a75b2f2df9a8f113b2334577dc732eec7240 | commitdiff |
ipv6: netfilter: ip6_tables: fix infoleak to userspace
commit 6a8ab060779779de8aea92ce3337ca348f973f54 upstream.
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.
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 6a8ab060779779de8aea92ce3337ca348f973f54 upstream.
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.
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/ipv6/netfilter/ip6_tables.c | diffblobblamehistory |