File e37bd65f-logging-restrict-sockets-to-mode-0600.patch of Package libvirt.11700
>From 4b6c7969a5174aa87b5dad5caa9d9ca31ecbad87 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
Date: Tue, 30 Apr 2019 17:27:41 +0100
Subject: [PATCH 3/6] logging: restrict sockets to mode 0600
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The virtlogd daemon's only intended client is the libvirtd daemon. As
such it should never allow clients from other user accounts to connect.
The code already enforces this and drops clients from other UIDs, but
we can get earlier (and thus stronger) protection against DoS by setting
the socket permissions to 0600
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
src/logging/virtlogd-admin.socket.in | 1 +
src/logging/virtlogd.socket.in | 1 +
2 files changed, 2 insertions(+)
Index: libvirt-5.1.0/src/logging/virtlogd-admin.socket.in
===================================================================
--- libvirt-5.1.0.orig/src/logging/virtlogd-admin.socket.in
+++ libvirt-5.1.0/src/logging/virtlogd-admin.socket.in
@@ -5,6 +5,7 @@ Before=libvirtd.service
[Socket]
ListenStream=@localstatedir@/run/libvirt/virtlogd-admin-sock
Service=virtlogd.service
+SocketMode=0600
[Install]
WantedBy=sockets.target
Index: libvirt-5.1.0/src/logging/virtlogd.socket.in
===================================================================
--- libvirt-5.1.0.orig/src/logging/virtlogd.socket.in
+++ libvirt-5.1.0/src/logging/virtlogd.socket.in
@@ -4,6 +4,7 @@ Before=libvirtd.service
[Socket]
ListenStream=@localstatedir@/run/libvirt/virtlogd-sock
+SocketMode=0600
[Install]
WantedBy=sockets.target