Fedora 29: 2019-865bb16900 Critical: Xen DoS And Memory Issues

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

VCPUOP_initialise DoS [XSA-296, CVE-2019-18420] missing descriptor table limit

checking in x86 PV emulation [XSA-298, CVE-2019-18425] Issues with restartable

PV type change operations [XSA-299, CVE-2019-18421] (#1767726) add-to-physmap

can be abused to DoS Arm hosts [XSA-301, CVE-2019-18423] passed through PCI

devices may corrupt host memory after deassignment [XSA-302, CVE-2019-18424]

(#1767731) ARM: Interrupts are unconditionally unmasked in exception handlers

[XSA-303, CVE-2019-18422]

* Fri Nov 1 2019 Michael Young - 4.11.2-2

- VCPUOP_initialise DoS [XSA-296, CVE-2019-18420]

- missing descriptor table limit checking in x86 PV emulation [XSA-298,

CVE-2019-18425]

- Issues with restartable PV type change operations [XSA-299, CVE-2019-18421]

(#1767726)

- add-to-physmap can be abused to DoS Arm hosts [XSA-301, CVE-2019-18423]

- passed through PCI devices may corrupt host memory after deassignment

[XSA-302, CVE-2019-18424] (#1767731)

- ARM: Interrupts are unconditionally unmasked in exception handlers

[XSA-303, CVE-2019-18422]

* Mon Jul 1 2019 Michael Young - 4.11.2-1

- update to 4.11.2

remove patches now fixed upstream

adjust xen.use.fedora.ipxe.patch

drop parts of xen.gcc9.fixes.patch

* Sat Jun 15 2019 Michael Young - 4.11.1-6

- Unlimited Arm Atomics Operations [XSA-295] (#1720760)

* Tue May 14 2019 Michael Young - 4.11.1-5

- Microarchitectural Data Sampling speculative side channel [XSA-297,

CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091]

- additional patches so above applies cleanly

- work around grub2 issues in dom0

* Tue Mar 5 2019 Michael Young - 4.11.1-4

- xen: various flaws (#1685577)

grant table transfer issues on large hosts [XSA-284]

race with pass-through device hotplug [XSA-285]

x86: steal_page violates page_struct access discipline [XSA-287]

x86: Inconsistent PV IOMMU discipline [XSA-288]

missing preemption in x86 PV page table unvalidation [XSA-290]

x86/PV: page type reference counting issue with failed IOMMU update [XSA-291]

x86: insufficient TLB flushing when using PCID [XSA-292]

x86: PV kernel context switch corruption [XSA-293]

x86 shadow: Insufficient TLB flushing when using PCID [XSA-294]

* Thu Feb 14 2019 Michael Young - 4.11.1-3

- add gcc9 build fixes (#1676229)

* Sun Feb 3 2019 Fedora Release Engineering - 4.11.1-2

- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild

* Tue Dec 11 2018 Michael Young - 4.11.1-1

- update to 4.11.1

remove patches for issues now fixed upstream

adjust xen.use.fedora.ipxe.patch

- only include qemutrad build requirements for platforms that use it

- construct ovmf.bin from edk2-ovmf package (#1656651)

* Tue Nov 20 2018 Michael Young - 4.11.0-10

- insufficient TLB flushing / improper large page mappings with AMD IOMMUs

[XSA-275, CVE-2018-19961, CVE-2018-19962] (#1651665)

- x86: DoS from attempting to use INVPCID with a non-canonical addresses

[XSA-279, CVE-2018-19965] (#1651970)

- xen: various flaws (#1652251)

resource accounting issues in x86 IOREQ server handling

[XSA-276, CVE-2018-19963]

x86: incorrect error handling for guest p2m page removals

[XSA-277, CVE-2018-19964]

Fix for XSA-240 conflicts with shadow paging [XSA-280, CVE-2018-19966]

* Tue Nov 6 2018 Michael Young - 4.11.0-9

- guest use of HLE constructs may lock up host [XSA-282, CVE-2018-19967]

* Wed Oct 24 2018 Michael Young - 4.11.0-8

- x86: Nested VT-x usable even when disabled [XSA-278, CVE-2018-18883]

(#1643118)

[ 1 ] Bug #1765043 - CVE-2019-18421 xen: a malicious PV guest administrator may be able to escalate their privilege to that of the host

https://bugzilla.redhat.com/show_bug.cgi?id=1765043

[ 2 ] Bug #1767730 - CVE-2019-18424 xen: passed through PCI devices may corrupt host memory after deassignment leading to privilege escalation

https://bugzilla.redhat.com/show_bug.cgi?id=1767730

su -c 'dnf upgrade --advisory FEDORA-2019-865bb16900' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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/security/

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