Fedora 26: RHSA-2017-6d7e8c1b5e Urgent: Kernel Security Flaw

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

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]

[ 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

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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