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Sicherheit: Denial of Service in Xen
Aktuelle Meldungen Distributionen
Name: Denial of Service in Xen
ID: FEDORA-2012-11190
Distribution: Fedora
Plattformen: Fedora 16
Datum: Mo, 6. August 2012, 14:39
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3432

Originalnachricht

Name        : xen
Product : Fedora 16
Version : 4.1.2
Release : 9.fc16
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:

in rare circumstances an unprivileged user can crash an HVM guest [XSA-10]
(#843766)

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ChangeLog:

* Fri Jul 27 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-9
- in rare circumstances an unprivileged user can crash an HVM guest [XSA-10]
(#843766)
* Wed Jun 13 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-8
- make pygrub cope better with big files from guest (#818412 CVE-2012-2625)
- 64-bit PV guest privilege escalation vulnerability [CVE-2012-0217]
- guest denial of service on syscall/sysenter exception generation
[CVE-2012-0218]
- PV guest host Denial of Service [CVE-2012-2934]
* Tue May 8 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-7
- Make the udev tap rule more specific as it breaks openvpn (#819452)
- load xen-acpi-processor module (kernel 3.4 onwards) if present
* Thu Feb 2 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-6
- Fix buffer overflow in e1000 emulation for HVM guests [CVE-2012-0029]
* Sat Jan 28 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-5
- Start building xen's ocaml libraries if appropriate unless --without
ocaml
was specified
- add some backported patches from xen unstable (via Debian) for some
ocaml tidying and fixes
* Sun Jan 15 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-4
- actually apply the xend-pci-loop.patch
- compile fixes for gcc-4.7
* Wed Jan 11 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-3
- Add xend-pci-loop.patch to stop xend crashing with weird PCI cards (#767742)
- avoid a backtrace if xend can't log to the standard file or a
temporary directory (part of #741042)
* Mon Nov 21 2011 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-2
- Fix lost interrupts on emulated devices
- stop xend crashing if its state files are empty at start up
- avoid a python backtrace if xend is run on bare metal
- update grub2 configuration after the old hypervisor has gone
- move blktapctrl to systemd
- Drop obsolete dom0-kernel.repo file
* Fri Oct 21 2011 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-1
- update to 4.1.2
remove upstream patches xen-4.1-testing.23104 and xen-4.1-testing.23112
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References:

[ 1 ] Bug #843570 - CVE-2012-3432 kernel: xen: HVM guest user mode MMIO
emulation DoS
https://bugzilla.redhat.com/show_bug.cgi?id=843570
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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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