Fedora 27: FEDORA-2018-98684f429b Critical: Xen Debug Exception Issues

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

x86: mishandling of debug exceptions [XSA-260, CVE-2018-8897] x86 vHPET

interrupt injection errors [XSA-261] (#1576089) qemu may drive Xen into

unbounded loop [XSA-262]

* Wed May 9 2018 Michael Young - 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] (#1576089)

- qemu may drive Xen into unbounded loop [XSA-262]

* Wed Apr 25 2018 Michael Young - 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 - 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 - 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 - 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 - 4.9.1-3

- OCaml 4.06.0 rebuild.

* Tue Nov 28 2017 Michael Young - 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 - 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 - 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 - 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 - 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]

[ 1 ] Bug #1571880 - CVE-2018-10982 xsa261 xen: x86 vHPET interrupt injection errors (XSA-261)

https://bugzilla.redhat.com/show_bug.cgi?id=1571880

[ 2 ] Bug #1571881 - CVE-2018-10981 xsa262 xen: qemu may drive Xen into unbounded loop (XSA-262)

https://bugzilla.redhat.com/show_bug.cgi?id=1571881

su -c 'dnf upgrade --advisory FEDORA-2018-98684f429b' 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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