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Fedora Update Notification
FEDORA-2018-a7862a75f5
2018-07-03 16:49:24.958420
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Name : xen
Product : Fedora 28
Version : 4.10.1
Release : 5.fc28
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:

preemption checks bypassed in x86 PV MM handling [XSA-264, CVE-2018-12891]
(#1595959) x86: #DB exception safety check can be triggered by a guest [XSA-265,
CVE-2018-12893] (#1595958) libxl fails to honour readonly flag on HVM emulated
SCSI disks [XSA-266, CVE-2018-12892] (#1595957)
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ChangeLog:

* Wed Jun 27 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.1-5
– preemption checks bypassed in x86 PV MM handling [XSA-264, CVE-2018-12891]
(#1595959)
– x86: #DB exception safety check can be triggered by a guest [XSA-265,
CVE-2018-12893] (#1595958)
– libxl fails to honour readonly flag on HVM emulated SCSI disks [XSA-266,
CVE-2018-12892] (#1595957)
* Fri Jun 15 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.1-4
– Speculative register leakage from lazy FPU context switching
[XSA-267, CVE-2018-3665]
– fix for change in iasl output
* Tue May 22 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.1-3
– Speculative Store Bypass [XSA-263, CVE-2018-3639]
(with extra patches so it applies cleanly)
* Tue May 8 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.1-2
– x86: mishandling of debug exceptions [XSA-260, CVE-2018-8897]
– x86 vHPET interrupt injection errors [XSA-261, CVE-2018-10982] (#1576089)
– qemu may drive Xen into unbounded loop [XSA-262, CVE-2018-10981] (#1576680)
* Thu May 3 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.1-1
– update to xen-4.10.1
adjust xen.use.fedora.ipxe.patch and xen.fedora.efi.build.patch
remove patches for issues now fixed upstream
package /usr/lib/debug/usr/lib/xen/boot/xen-shim-syms
* Wed Apr 25 2018 Michael Young <m.a.young@durham.ac.uk> – 4.10.0-9
– Information leak via crafted user-supplied CDROM [XSA-258, CVE-2018-10472]
(#1571867)
– x86: PV guest may crash Xen with XPTI [XSA-259, CVE-2018-10471] (#1571878)
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References:

[ 1 ] Bug #1590984 – CVE-2018-12892 xsa-266 xen: libxl fails to honour readonly flag on HVM emulated SCSI disks
https://bugzilla.redhat.com/show_bug.cgi?id=1590984
[ 2 ] Bug #1590979 – CVE-2018-12893 xen: x86 DB exception safety check can be triggered by a guest (XSA-265)
https://bugzilla.redhat.com/show_bug.cgi?id=1590979
[ 3 ] Bug #1590985 – CVE-2018-12891 xen: preemption checks bypassed in x86 PV MM handling (XSA-264)
https://bugzilla.redhat.com/show_bug.cgi?id=1590985
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This update can be installed with the “dnf” update program. Use
su -c ‘dnf upgrade –advisory FEDORA-2018-a7862a75f5’ 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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