--------------------------------------------------------------------------------Fedora Update Notification
FEDORA-2017-5c6a9b07a3
2017-07-07 22:40:59.821685
--------------------------------------------------------------------------------Name        : xen
Product     : Fedora 26
Version     : 4.8.1
Release     : 4.fc26
URL         : https://xenproject.org/
Summary     : Xen is a virtual machine monitor
Description :
This package contains the XenD daemon and xm command line
tools, needed to manage virtual machines running under the
Xen hypervisor

--------------------------------------------------------------------------------Update Information:

xen: various flaws (#1463247) blkif responses leak backend stack data [XSA-216]
page transfer may allow PV guest to elevate privilege [XSA-217] Races in the
grant table unmap code [XSA-218] x86: insufficient reference counts during
shadow emulation [XSA-219] x86: PKRU and BND* leakage between vCPU-s [XSA-220]
NULL pointer deref in event channel poll [XSA-221] (#1463231) stale P2M mappings
due to insufficient error checking [XSA-222] ARM guest disabling interrupt may
crash Xen [XSA-223] grant table operations mishandle reference counts [XSA-224]
arm: vgic: Out-of-bound access when sending SGIs [XSA-225]
--------------------------------------------------------------------------------References:

  [ 1 ] Bug #1458870 - CVE-2017-10911 xsa216 xen: blkif responses leak backend stack data (XSA-216)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458870
  [ 2 ] Bug #1458871 - CVE-2017-10912 xsa217 xen: page transfer may allow PV guest to elevate privilege (XSA-217)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458871
  [ 3 ] Bug #1458872 - CVE-2017-10913 CVE-2017-10914 xsa218 xen: Races in the grant table unmap code (XSA-218)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458872
  [ 4 ] Bug #1458873 - CVE-2017-10915 xsa219 xen: x86: insufficient reference counts during shadow emulation (XSA-219)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458873
  [ 5 ] Bug #1458874 - CVE-2017-10916 xsa220 xen: x86: PKRU and BND* leakage between vCPU-s (XSA-220)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458874
  [ 6 ] Bug #1458876 - CVE-2017-10918 xsa222 xen: stale P2M mappings due to insufficient error checking (XSA-222)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458876
  [ 7 ] Bug #1458877 - CVE-2017-10919 xsa223 xen: ARM guest disabling interrupt may crash Xen (XSA-223)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458877
  [ 8 ] Bug #1458878 - CVE-2017-10920 CVE-2017-10921 CVE-2017-10922 xsa224 xen: grant table operations mishandle reference counts (XSA-224)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458878
  [ 9 ] Bug #1459515 - CVE-2017-10923 xsa225 xen: arm: vgic: Out-of-bound access when sending SGIs (XSA-225)
        https://bugzilla.redhat.com/show_bug.cgi?id=1459515
  [ 10 ] Bug #1458875 - CVE-2017-10917 xsa221 xen: NULL pointer deref in event channel poll (XSA-221)
        https://bugzilla.redhat.com/show_bug.cgi?id=1458875
--------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade xen' at the command line.
For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/security/
--------------------------------------------------------------------------------
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