[Pkg-samba-maint] [samba] 01/02: CVE-2017-7494: rpc_server3: Refuse to open pipe names with / inside

[Mathieu Parent]

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sathieu pushed a commit to branch master
in repository samba.

commit 8ca52124ea61c082f161c623ac2a2c63a2ff8764
Author: Volker Lendecke <vl at samba.org>
Date:   Mon May 8 21:40:40 2017 +0200

    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 at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    Reviewed-by: Stefan Metzmacher <metze at samba.org>
---
 source3/rpc_server/srv_pipe.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index bcd7e5d..40d60a7 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -476,6 +476,11 @@ bool is_known_pipename(const char *pipename, struct ndr_syntax_id *syntax)
 {
 	NTSTATUS status;
 
+	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;

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