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From 6da721ea37bf3624ff9922637cfa657d2dcb20f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Fri, 14 Jun 2019 09:14:53 +0200
Subject: [PATCH 09/11] api: disallow virDomainManagedSaveDefineXML on
 read-only connections
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The virDomainManagedSaveDefineXML can be used to alter the domain's
config used for managedsave or even execute arbitrary emulator binaries.
Forbid it on read-only connections.

Fixes: CVE-2019-10166
Reported-by: Matthias Gerstner <mgerstner@suse.de>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
(cherry picked from commit db0b78457f183e4c7ac45bc94de86044a1e2056a)
Signed-off-by: Ján Tomko <jtomko@redhat.com>

Upstream-Status: Backport
CVE: CVE-2019-10166
Signed-off-by: Armin Kuster <akuster@mvista.com>

---
 src/libvirt-domain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c
index 270e10e..5c764aa 100644
--- a/src/libvirt-domain.c
+++ b/src/libvirt-domain.c
@@ -9482,6 +9482,7 @@ virDomainManagedSaveDefineXML(virDomainPtr domain, const char *dxml,
 
     virCheckDomainReturn(domain, -1);
     conn = domain->conn;
+    virCheckReadOnlyGoto(conn->flags, error);
 
     if (conn->driver->domainManagedSaveDefineXML) {
         int ret;
-- 
2.7.4