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Sicherheit: Preisgabe von Informationen in xen
Aktuelle Meldungen Distributionen
Name: Preisgabe von Informationen in xen
ID: FEDORA-2018-fe24359b69
Distribution: Fedora
Plattformen: Fedora 27
Datum: So, 25. November 2018, 10:30
Referenzen: Keine Angabe
Applikationen: Xen

Originalnachricht

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Fedora Update Notification
FEDORA-2018-fe24359b69
2018-11-25 02:03:23.555613
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Name : xen
Product : Fedora 27
Version : 4.9.3
Release : 3.fc27
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:

guest use of HLE constructs may lock up host [XSA-282]
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ChangeLog:

* Tue Nov 6 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.3-3
- guest use of HLE constructs may lock up host [XSA-282]
* Thu Oct 25 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.3-2
- x86: Nested VT-x usable even when disabled [XSA-278, CVE-2018-18883]
(#1643118)
* Tue Sep 25 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.3-1
- update to 4.9.3
adjust xen.use.fedora.ipxe.patch
remove patches for issues now fixed upstream
* Wed Aug 15 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-7
- L1 Terminal Fault speculative side channel patch bundle [XSA-273,
CVE-2018-3620, CVE-2018-3646]
drop patches also in the bundle, which also includes
Use of v2 grant tables may cause crash on ARM [XSA-268, CVE-2018-15469]
(#1616081)
x86: Incorrect MSR_DEBUGCTL handling lets guests enable BTS [XSA-269,
CVE-2018-15468] (#1616077)
oxenstored does not apply quota-maxentity [XSA-272, CVE-2018-15470]
(#1616080)
* Wed Jun 27 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-6
- 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)
* Sat Jun 16 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-5
- 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> - 4.9.2-4
- Speculative Store Bypass [XSA-263, CVE-2018-3639]
(with extra patches so it applies cleanly)
* Wed May 9 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-3
- x86: mishandling of debug exceptions [XSA-260, CVE-2018-8897]
(with extra patch so it applies cleanly)
- x86 vHPET interrupt injection errors [XSA-261, CVE-2018-10982] (#1576089)
- qemu may drive Xen into unbounded loop [XSA-262, CVE-2018-10981] (#1576680)
* Wed Apr 25 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-2
- Information leak via crafted user-supplied CDROM [XSA-258] (#1571867)
- x86: PV guest may crash Xen with XPTI [XSA-259] (#1571878)
* Wed Apr 4 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.2-1
- update to 4.9.2
adjust xen.use.fedora.ipxe.patch
remove patches for issues now fixed upstream
* Tue Feb 27 2018 Michael Young <m.a.young@durham.ac.uk> - 4.9.1-5
- add Xen page-table isolation (XPTI) mitigation
and Branch Target Injection (BTI) mitigation for XSA-254
- DoS via non-preemptable L3/L4 pagetable freeing [XSA-252, CVE-2018-7540]
(#1549568)
- grant table v2 -> v1 transition may crash Xen [XSA-255, CVE-2018-7541]
(#1549570)
- x86 PVH guest without LAPIC may DoS the host [XSA-256, CVE-2018-7542]
(#1549572)
* Tue Dec 12 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.1-4
- another patch related to the [XSA-240, CVE-2017-15595] issue
- xen: various flaws (#1525018)
x86 PV guests may gain access to internally used page
[XSA-248, CVE-2017-17566]
broken x86 shadow mode refcount overflow check [XSA-249, CVE-2017-17563]
improper x86 shadow mode refcount error handling [XSA-250, CVE-2017-17564]
improper bug check in x86 log-dirty handling [XSA-251, CVE-2017-17565]
* Sat Dec 2 2017 Richard W.M. Jones <rjones@redhat.com> - 4.9.1-3
- OCaml 4.06.0 rebuild.
* Tue Nov 28 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.1-2
- xen: various flaws (#1518214)
x86: infinite loop due to missing PoD error checking [XSA-246,
CVE-2017-17044]
Missing p2m error checking in PoD code [XSA-247, CVE-2017-17045]
* Thu Nov 23 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.1-1
- update to 4.9.1 (#1515818)
adjust xen.use.fedora.ipxe.patch
and qemu.git-fec5e8c92becad223df9d972770522f64aafdb72.patch
remove patches for issues now fixed upstream and parts of xen.gcc7.fix.patch
update xen.hypervisor.config
- update Source0 location
* Wed Nov 15 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.0-14
- fix an issue in patch for [XSA-240, CVE-2017-15595] that might be a
security issue
- fix for [XSA-243, CVE-2017-15592] could cause hypervisor crash (DOS)
* Thu Oct 26 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.0-13
- pin count / page reference race in grant table code [XSA-236, CVE-2017-15597]
(#1506693)
* Thu Oct 12 2017 Michael Young <m.a.young@durham.ac.uk> - 4.9.0-12
- xen: various flaws (#1501391)
multiple MSI mapping issues on x86 [XSA-237, CVE-2017-15590]
DMOP map/unmap missing argument checks [XSA-238, CVE-2017-15591]
hypervisor stack leak in x86 I/O intercept code [XSA-239, CVE-2017-15589]
Unlimited recursion in linear pagetable de-typing [XSA-240, CVE-2017-15595]
Stale TLB entry due to page type release race [XSA-241, CVE-2017-15588]
page type reference leak on x86 [XSA-242, CVE-2017-15593]
x86: Incorrect handling of self-linear shadow mappings with translated
guests [XSA-243, CVE-2017-15592]
x86: Incorrect handling of IST settings during CPU hotplug [XSA-244,
CVE-2017-15594]
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2018-fe24359b69' 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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