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Sicherheit: Denial of Service in Xen
Aktuelle Meldungen Distributionen
Name: Denial of Service in Xen
ID: FEDORA-2012-11755
Distribution: Fedora
Plattformen: Fedora 17
Datum: Di, 21. August 2012, 14:42
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3432
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3433
Applikationen: Xen

Originalnachricht

Name        : xen
Product : Fedora 17
Version : 4.1.3
Release : 2.fc17
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:

fix for (#845444) broke xend under systemd,
update to 4.1.3, includes fix for untrusted HVM guest can cause the dom0 to
hang or crash [XSA-11, CVE-2012-3433] (#843582) remove some unnecessary cache flushing that slow things down, change python options on xend to reduce selinux problems (#845444)
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ChangeLog:

* Fri Aug 10 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.3-1
4.1.3-2
- update to 4.1.3
includes fix for untrusted HVM guest can cause the dom0 to hang or
crash [XSA-11, CVE-2012-3433] (#843582)
- remove patches that are now upstream
- remove some unnecessary compile fixes
- adjust upstream-23936:cdb34816a40a-rework for backported fix for
upstream-23940:187d59e32a58
- replace pygrub.size.limits.patch with upstreamed version
- fix for (#845444) broke xend under systemd
* Tue Aug 7 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-25
- remove some unnecessary cache flushing that slow things down
- change python options on xend to reduce selinux problems (#845444)
* Thu Jul 26 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-24
- in rare circumstances an unprivileged user can crash an HVM guest
[XSA-10,CVE-2012-3432] (#843766)
* Tue Jul 24 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-23
- add a patch to remove a dependency on PyXML and Require python-lxml
instead of PyXML (#842843)
* Sun Jul 22 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-22
- adjust systemd service files not to report failures when running without
a hypervisor or when xendomains.service doesn't find anything to start
* Sun Jul 22 2012 Fedora Release Engineering
<rel-eng@lists.fedoraproject.org> - 4.1.2-21
- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
* Tue Jun 12 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-20
- Apply three security patches
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]
* Sat Jun 9 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-19
- adjust xend.service systemd file to avoid selinux problems
* Fri Jun 8 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-18
- Enable xenconsoled by default under systemd (#829732)
* Thu May 17 2012 Michael Young <m.a.young@durham.ac.uk> - 4.1.2-16
4.1.2-17
- make pygrub cope better with big files from guest (#818412 CVE-2012-2625)
- add patch from 4.1.3-rc2-pre to build on F17/8
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References:

[ 1 ] Bug #843582 - CVE-2012-3433 kernel: xen: HVM guest destroy p2m teardown
host DoS vulnerability
https://bugzilla.redhat.com/show_bug.cgi?id=843582
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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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