samba: fix CVE-2017-7494

[openwrt/openwrt.git] / package / network / services / samba36 / patches / 028-CVE-2017-7494-v3-6.patch

diff --git a/package/network/services/samba36/patches/028-CVE-2017-7494-v3-6.patch b/package/network/services/samba36/patches/028-CVE-2017-7494-v3-6.patch
new file mode 100644 (file)
index 0000000..17b020d
--- /dev/null
+++ b/package/network/services/samba36/patches/028-CVE-2017-7494-v3-6.patch
@@ -0,0 +1,29 @@
+From d2bc9f3afe23ee04d237ae9f4511fbe59a27ff54 Mon Sep 17 00:00:00 2001
+From: Volker Lendecke <vl@samba.org>
+Date: Mon, 8 May 2017 21:40:40 +0200
+Subject: [PATCH] CVE-2017-7494: rpc_server3: Refuse to open pipe names with /
+ inside
+
+Bug: https://bugzilla.samba.org/show_bug.cgi?id=12780
+
+Signed-off-by: Volker Lendecke <vl@samba.org>
+Reviewed-by: Jeremy Allison <jra@samba.org>
+Reviewed-by: Stefan Metzmacher <metze@samba.org>
+---
+ source3/rpc_server/srv_pipe.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/source3/rpc_server/srv_pipe.c
++++ b/source3/rpc_server/srv_pipe.c
+@@ -473,6 +473,11 @@ bool is_known_pipename(const char *cli_f
+               pipename += 1;
+       }
+ 
++      if (strchr(pipename, '/')) {
++              DEBUG(1, ("Refusing open on pipe %s\n", pipename));
++              return false;
++      }
++
+       if (lp_disable_spoolss() && strequal(pipename, "spoolss")) {
+               DEBUG(10, ("refusing spoolss access\n"));
+               return false;