Sicherheit: Mehrere Probleme in Xen - Pro-Linux

Name        : xen
Product     : Fedora 18
Version     : 4.2.2
Release     : 3.fc18
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:

PV guests can use non-preemptible long latency operations to mount a
denial of service attack on the whole system [XSA-45, CVE-2013-1918],
malicious guests can inject interrupts through bridge devices to mount a
denial of service attack on the whole system [XSA-49, CVE-2013-1952]
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ChangeLog:

* Thu May  2 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.2-3
- PV guests can use non-preemptible long latency operations to
  mount a denial of service attack on the whole system
  [XSA-45, CVE-2013-1918] (#958918)
- malicious guests can inject interrupts through bridge devices to
  mount a denial of service attack on the whole system
  [XSA-49, CVE-2013-1952] (#958919)
* Fri Apr 26 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.2-2
- fix further man page issues to allow building on F19 and F20
* Thu Apr 25 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.2-1
- update to xen-4.2.2
  includes fixes for
  [XSA-48, CVE-2013-1922] (Fedora doesn't use the affected code)
  passed through IRQs or PCI devices might allow denial of service attack
    [XSA-46, CVE-2013-1919] (#953568)
  SYSENTER in 32-bit PV guests on 64-bit xen can crash hypervisor
    [XSA-44, CVE-2013-1917] (#953569)
- remove patches that are included in 4.2.2
- look for libxl-save-helper in the right place
- fix xl list -l output when built with yajl2
- allow xendomains to work with xl saved images
* Thu Apr  4 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-10
- make xendomains systemd script executable and update it from
  init.d version (#919705)
- Potential use of freed memory in event channel operations [XSA-47,
  CVE-2013-1920]
* Thu Feb 21 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-9
- patch for [XSA-36, CVE-2013-0153] can cause boot time crash
* Fri Feb 15 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-8
- patch for [XSA-38, CVE-2013-0215] was flawed
* Fri Feb  8 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-7
- BuildRequires for texlive-kpathsea-bin wasn't needed
- correct gcc 4.8 fixes and follow suggestions upstream
* Tue Feb  5 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-6
- guest using oxenstored can crash host or exhaust memory [XSA-38,
  CVE-2013-0215] (#907888)
- guest using AMD-Vi for PCI passthrough can cause denial of service
  [XSA-36, CVE-2013-0153] (#910914)
- add some fixes for code which gcc 4.8 complains about
- additional BuildRequires are now needed for pod2text and pod2man
  also texlive-kpathsea-bin for mktexfmt
* Wed Jan 23 2013 Michael Young <m.a.young@durham.ac.uk>
- correct disabling of xendomains.service on uninstall
* Tue Jan 22 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-5
- nested virtualization on 32-bit guest can crash host [XSA-34,
  CVE-2013-0151] also nested HVM on guest can cause host to run out
  of memory [XSA-35, CVE-2013-0152] (#902792)
- restore status option to xend which is used by libvirt (#893699)
* Thu Jan 17 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-4
- Buffer overflow when processing large packets in qemu e1000 device
  driver [XSA-41, CVE-2012-6075] (#910845)
* Thu Jan 10 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-3
- fix some format errors in xl.cfg.pod.5 to allow build on F19
* Wed Jan  9 2013 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-2
- VT-d interrupt remapping source validation flaw [XSA-33,
    CVE-2012-5634] (#893568)
- pv guests can crash xen when xen built with debug=y (included for
    completeness - Fedora builds have debug=n) [XSA-37, CVE-2013-0154]
* Tue Dec 18 2012 Michael Young <m.a.young@durham.ac.uk> - 4.2.1-1
- update to xen-4.2.1
- remove patches that are included in 4.2.1
- rebase xen.fedora.efi.build.patch
* Thu Dec 13 2012 Richard W.M. Jones <rjones@redhat.com> - 4.2.0-7
- Rebuild for OCaml fix (RHBZ#877128).
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References:

  [ 1 ] Bug #956163 - CVE-2013-1918 kernel: xen: Several long latency
 operations are not preemptible
        https://bugzilla.redhat.com/show_bug.cgi?id=956163
  [ 2 ] Bug #956309 - CVE-2013-1952 kernel: xen: VT-d interrupt remapping
 source validation flaw for bridges
        https://bugzilla.redhat.com/show_bug.cgi?id=956309
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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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