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Fedora Update Notification
FEDORA-2015-3944
2015-03-15 06:54:28
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Name : xen
Product : Fedora 21
Version : 4.4.1
Release : 16.fc21
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:

Additional patch for XSA-98 on arm64
HVM qemu unexpectedly enabling emulated VGA graphics backends [XSA-119, CVE-2015-2152]
Hypervisor memory corruption due to x86 emulator flaw [XSA-123, CVE-2015-2151]
enable building pngs from fig files which is working again,
fix oxenstored.service preset preuninstall script,
arm: vgic: incorrect rate limiting of guest triggered logging,
Information leak via internal x86 system device emulation,
Information leak through version information hypercall
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ChangeLog:

* Fri Mar 13 2015 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-16
– Additional patch for XSA-98 on arm64
* Thu Mar 12 2015 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-15
– HVM qemu unexpectedly enabling emulated VGA graphics backends [XSA-119,
CVE-2015-2152] (#1201365)
* Wed Mar 11 2015 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-14
– Hypervisor memory corruption due to x86 emulator flaw [XSA-123,
CVE-2015-2151] (#1200398)
* Thu Mar 5 2015 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-13
– enable building pngs from fig files which is working again
– fix oxenstored.service preset preuninstall script
– arm: vgic: incorrect rate limiting of guest triggered logging [XSA-118,
CVE-2015-1563] (#1187153)
– Information leak via internal x86 system device emulation [XSA-121,
CVE-2015-2044]
– Information leak through version information hypercall [XSA-122,
CVE-2015-2045]
* Tue Jan 6 2015 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-12
– xen crash due to use after free on hvm guest teardown [XSA-116,
CVE-2015-0361] (#1179221)
* Tue Dec 16 2014 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-11
– fix xendomains issue introduced by xl migrate –debug patch
* Mon Dec 8 2014 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-10
– p2m lock starvation [XSA-114, CVE-2014-9065]
– fix build with –without xsm
* Thu Nov 27 2014 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-9
– Excessive checking in compatibility mode hypercall argument translation
[XSA-111, CVE-2014-8866]
– Insufficient bounding of “REP MOVS” to MMIO emulated inside the hypervisor
[XSA-112, CVE-2014-8867]
– fix segfaults and failures in xl migrate –debug (#1166461)
* Thu Nov 20 2014 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-8
– Guest effectable page reference leak in MMU_MACHPHYS_UPDATE handling
[XSA-113, CVE-2014-9030] (#1166914)
* Tue Nov 18 2014 Michael Young <m.a.young@durham.ac.uk> – 4.4.1-7
– Insufficient restrictions on certain MMU update hypercalls [XSA-109,
CVE-2014-8594] (#1165205)
– Missing privilege level checks in x86 emulation of far branches [XSA-110,
CVE-2014-8595] (#1165204)
– Add fix for CVE-2014-0150 to qemu-dm, though it probably isn’t
exploitable from xen (#1086776)
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References:

[ 1 ] Bug #1187153 – CVE-2015-1563 xen: vgic: incorrect rate limiting of guest triggered logging on ARM architectures (XSA-118)
https://bugzilla.redhat.com/show_bug.cgi?id=1187153
[ 2 ] Bug #1200724 – CVE-2015-2152 xen: HVM qemu unexpectedly enabling emulated VGA graphics backends (XSA 119)
https://bugzilla.redhat.com/show_bug.cgi?id=1200724
[ 3 ] Bug #1196274 – CVE-2015-2151 xen: hypervisor memory corruption due to x86 emulator flaw (xsa123)
https://bugzilla.redhat.com/show_bug.cgi?id=1196274
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This update can be installed with the “yum” update program. Use
su -c ‘yum update xen’ at the command line.
For more information, refer to “Managing Software with yum”,
available at http://docs.fedoraproject.org/yum/.

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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