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Fedora Update Notification
FEDORA-2017-c432db2971
2017-11-11 13:29:22.441877
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Name        : xen
Product     : Fedora 27
Version     : 4.9.0
Release     : 12.fc27
URL         : http://xen.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

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Update Information:

xen: various flaws (#1501391) multiple MSI mapping issues on x86 [XSA-237] DMOP
map/unmap missing argument checks [XSA-238] hypervisor stack leak in x86 I/O
intercept code [XSA-239] Unlimited recursion in linear pagetable de-typing
[XSA-240] Stale TLB entry due to page type release race [XSA-241] page type
reference leak on x86 [XSA-242] x86: Incorrect handling of self-linear shadow
mappings with translated guests [XSA-243] x86: Incorrect handling of IST
settings during CPU hotplug [XSA-244]
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ChangeLog:

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References:

  [ 1 ] Bug #1499817 - CVE-2017-15590 xsa237 xen: multiple MSI mapping issues
 on x86 (XSA-237)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499817
  [ 2 ] Bug #1499818 - CVE-2017-15591 xsa238 xen: DMOP map/unmap missing
 argument checks (XSA-238)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499818
  [ 3 ] Bug #1499819 - CVE-2017-15589 xsa239 xen: hypervisor stack leak in x86
 I/O intercept code (XSA-239)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499819
  [ 4 ] Bug #1499820 - CVE-2017-15595 xsa240 xen: Unlimited recursion in linear
 pagetable de-typing (XSA-240)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499820
  [ 5 ] Bug #1499821 - CVE-2017-15588 xsa241 xen: Stale TLB entry due to page
 type release race (XSA-241)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499821
  [ 6 ] Bug #1499822 - CVE-2017-15593 xsa242 xen: page type reference leak on
 x86 (XSA-242)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499822
  [ 7 ] Bug #1499823 - CVE-2017-15592 xsa243 xen: x86: Incorrect handling of
 self-linear shadow mappings with translated guests (XSA-243)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499823
  [ 8 ] Bug #1499824 - CVE-2017-15594 xsa244 xen: x86: Incorrect handling of
 IST settings during CPU hotplug (XSA-244)
        https://bugzilla.redhat.com/show_bug.cgi?id=1499824
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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
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

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/keys
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