From b77317482326f31c796e16bda24c1eb344be2d21 Mon Sep 17 00:00:00 2001
Message-Id: <b77317482326f31c796e16bda24c1eb344be2d21@dist-git>
From: =?UTF-8?q?J=C3=A1n=20Tomko?= <jtomko@redhat.com>
Date: Tue, 18 Jun 2019 13:30:01 +0200
Subject: [PATCH] api: disallow virConnectGetDomainCapabilities on read-only
 connections
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This API can be used to execute arbitrary emulators.
Forbid it on read-only connections.

Fixes: CVE-2019-10167
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Message-Id: <eeefd7cf2afba696bed78582e086bfbd3ed23e00.1560857354.git.jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
---
 src/libvirt-domain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c
index 3855dfe0dd..a1c913bd86 100644
--- a/src/libvirt-domain.c
+++ b/src/libvirt-domain.c
@@ -11279,6 +11279,7 @@ virConnectGetDomainCapabilities(virConnectPtr conn,
     virResetLastError();
 
     virCheckConnectReturn(conn, NULL);
+    virCheckReadOnlyGoto(conn->flags, error);
 
     if (conn->driver->connectGetDomainCapabilities) {
         char *ret;
-- 
2.22.0