From: Jeremy Allison <jra@samba.org>
Date: Tue, 5 Jan 2016 19:33:48 +0000 (-0800)
Subject: CVE-2015-7560: s3: smbd: Refuse to set EA's on a symlink.
X-Git-Tag: tdb-1.3.9~433
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77b3d5b2a8848303070ba2e44476534885469a00;p=thirdparty%2Fsamba.git

CVE-2015-7560: s3: smbd: Refuse to set EA's on a symlink.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11648

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
---

diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index f0a9bde9cec..fd363b95ec1 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -664,6 +664,11 @@ NTSTATUS set_ea(connection_struct *conn, files_struct *fsp,
 		return NT_STATUS_EAS_NOT_SUPPORTED;
 	}
 
+	status = refuse_symlink(conn, fsp, smb_fname->base_name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
 	status = check_access(conn, fsp, smb_fname, FILE_WRITE_EA);
 	if (!NT_STATUS_IS_OK(status)) {
 		return status;