Fedora 30: Addressing Critical Xen Denial of Service Issues from 2019

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

add missing XSA-299 patches x86: Machine Check Error on Page Size Change DoS

[XSA-304, CVE-2018-12207] TSX Asynchronous Abort speculative side channel

[XSA-305, CVE-2019-11135] ---- 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]

* Tue Nov 12 2019 Michael Young - 4.11.2-3

- add missing XSA-299 patches

- x86: Machine Check Error on Page Size Change DoS [XSA-304, CVE-2018-12207]

- TSX Asynchronous Abort speculative side channel [XSA-305, CVE-2019-11135]

* Fri Nov 1 2019 Michael Young - 4.11.2-2

- VCPUOP_initialise DoS [XSA-296, CVE-2019-18420] (#1771368)

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

CVE-2019-18425] (#1771341)

- 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]

(#1771345)

- 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] (#1771443)

* 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, CVE-2019-17349,

CVE-2019-17350] (#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

[ 1 ] 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

[ 2 ] Bug #1771340 - CVE-2019-18425 xen: missing descriptor table limit checking in x86 PV emulation leading to privilege escalation

https://bugzilla.redhat.com/show_bug.cgi?id=1771340

[ 3 ] Bug #1771344 - CVE-2019-18423 xen: add-to-physmap can be abused to DoS Arm hosts

https://bugzilla.redhat.com/show_bug.cgi?id=1771344

[ 4 ] Bug #1771366 - CVE-2019-18420 xen: allows guest OS users to cause denial of service via VCPUOP_initialise hypercall

https://bugzilla.redhat.com/show_bug.cgi?id=1771366

[ 5 ] Bug #1771442 - CVE-2019-18422 xen: ARM: Interrupts are unconditionally unmasked in exception handlers

https://bugzilla.redhat.com/show_bug.cgi?id=1771442

[ 6 ] 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

su -c 'dnf upgrade --advisory FEDORA-2019-cbb732f760' 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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