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Fedora Update Notification
FEDORA-2018-2fde555d91
2018-11-22 03:20:10.351297
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Name : xen
Product : Fedora 29
Version : 4.11.0
Release : 10.fc29
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:

insufficient TLB flushing / improper large page mappings with AMD IOMMUs
[XSA-275] (#1651665) resource accounting issues in x86 IOREQ server handling
[XSA-276] x86: incorrect error handling for guest p2m page removals [XSA-277]
x86: DoS from attempting to use INVPCID with a non-canonical addresses [XSA-279]
Fix for XSA-240 conflicts with shadow paging [XSA-280]
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ChangeLog:

* Tue Nov 20 2018 Michael Young <m.a.young@durham.ac.uk> – 4.11.0-10
– insufficient TLB flushing / improper large page mappings with AMD IOMMUs
[XSA-275] (#1651665)
– resource accounting issues in x86 IOREQ server handling [XSA-276]
– x86: incorrect error handling for guest p2m page removals [XSA-277]
– x86: DoS from attempting to use INVPCID with a non-canonical addresses
[XSA-279]
– Fix for XSA-240 conflicts with shadow paging [XSA-280]
* Tue Nov 6 2018 Michael Young <m.a.young@durham.ac.uk> – 4.11.0-9
– guest use of HLE constructs may lock up host [XSA-282]
* Wed Oct 24 2018 Michael Young <m.a.young@durham.ac.uk> – 4.11.0-8
– x86: Nested VT-x usable even when disabled [XSA-278, CVE-2018-18883]
(#1643118)
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References:

[ 1 ] Bug #1647573 – xen: insufficient TLB flushing / improper large page mappings with AMD IOMMUs
https://bugzilla.redhat.com/show_bug.cgi?id=1647573
[ 2 ] Bug #1647588 – xen: x86: DoS from attempting to use INVPCID with a non-canonical addresses
https://bugzilla.redhat.com/show_bug.cgi?id=1647588
[ 3 ] Bug #1652231 – xsa276 xen: resource accounting issues in x86 IOREQ server handling (XSA-276)
https://bugzilla.redhat.com/show_bug.cgi?id=1652231
[ 4 ] Bug #1652227 – xsa277 xen: x86: incorrect error handling for guest p2m page removals (XSA-277)
https://bugzilla.redhat.com/show_bug.cgi?id=1652227
[ 5 ] Bug #1652235 – xsa280 xen: Conflicts with shadow paging due to XSA-240 incomplete fix (XSA-280)
https://bugzilla.redhat.com/show_bug.cgi?id=1652235
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This update can be installed with the “dnf” update program. Use
su -c ‘dnf upgrade –advisory FEDORA-2018-2fde555d91’ 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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