| commit | bf9717776581e3000f899fd0172d1eb448ab2679 | |
| author | Vasiliy Kulikov <segoon@openwall.com> | |
| Tue, 15 Mar 2011 12:35:21 +0000 (15 13:35 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 14 Apr 2011 23:53:35 +0000 (14 16:53 -0700) | ||
| tree | 44f401fa2f726cb6e820c69b0521f5370ff4669c | treesnapshot (tar.gz zip) |
| parent | 3be5e2ffddca4470b1be87ceb2868a59a3de9206 | commitdiff |
netfilter: arp_tables: fix infoleak to userspace
commit 42eab94fff18cb1091d3501cd284d6bd6cc9c143 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 bug was introduced before the git epoch; the second is
introduced by 6b7d31fc (v2.6.15-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 42eab94fff18cb1091d3501cd284d6bd6cc9c143 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 bug was introduced before the git epoch; the second is
introduced by 6b7d31fc (v2.6.15-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/ipv4/netfilter/arp_tables.c | diffblobblamehistory |