diff options
| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-03-15 13:37:13 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-03-15 13:37:13 +0100 |
| commit | 6a8ab060779779de8aea92ce3337ca348f973f54 (patch) | |
| tree | bdd3ebda1c8b1e75c32f6fa115ada1dcef18f1f4 /net/ipv4/tunnel4.c | |
| parent | 78b79876761b86653df89c48a7010b5cbd41a84a (diff) | |
ipv6: netfilter: ip6_tables: fix infoleak to userspace
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>
Diffstat (limited to 'net/ipv4/tunnel4.c')
0 files changed, 0 insertions, 0 deletions