[Oraclevm-errata] OVMSA-2018-0233 Important: Oracle VM 3.4 xen security update

[Errata Announcements for Oracle VM]

Oracle VM Security Advisory OVMSA-2018-0233

The following updated rpms for Oracle VM 3.4 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
xen-4.4.4-105.0.50.el6.x86_64.rpm
xen-tools-4.4.4-105.0.50.el6.x86_64.rpm


SRPMS:
http://oss.oracle.com/oraclevm/server/3.4/SRPMS-updates/xen-4.4.4-105.0.50.el6.src.rpm



Description of changes:

[4.4.4-105.0.50.el6]
- BUILDINFO: xen commit=67e64eec4bfe342ca6c2ff0858ae7f5c39041013
- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional 
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- x86/HVM: Restart ioreq processing state machine (Boris Ostrovsky) 
[Orabug: 28192905]

[4.4.4-105.0.49.el6]
- BUILDINFO: xen commit=7e4f43226d60a48df300b32ce60ecff75ce2612d
- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional 
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- svm: fix incorrect TSC scaling (Haozhong Zhang)  [Orabug: 28189188]

[4.4.4-105.0.48.el6]
- BUILDINFO: xen commit=ba8e4ae04e3594470f9ce1663135fbe8c25106af
- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional 
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- x86/spec-ctrl: Mitigations for LazyFPU (Ross Philipson)  [Orabug: 
28135217]  {CVE-2018-3665}
- x86: Support fully eager FPU context switching (Andrew Cooper) 
[Orabug: 28135217]  {CVE-2018-3665}

[4.4.4-105.0.47.el6]
- BUILDINFO: xen commit=312880584fe084de632a6667254a5cc1c846179e
- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional 
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- [xenmicrocode] Fix error reporting on successful return from tool 
(Ross Philipson)  [Orabug: 28128506]
- x86: correct default_xen_spec_ctrl calculation (Jan Beulich)  [Orabug: 
28034172]
- x86/msr: Virtualise MSR_SPEC_CTRL.SSBD for guests to use (Andrew 
Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/Intel: Mitigations for GPZ SP4 - Speculative Store Bypass (Andrew 
Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/AMD: Mitigations for GPZ SP4 - Speculative Store Bypass (Andrew 
Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Introduce a new `spec-ctrl=` command line argument to 
replace `bti=` (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/cpuid: Improvements to guest policies for speculative sidechannel 
features (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Explicitly set Xen's default MSR_SPEC_CTRL value 
(Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Split X86_FEATURE_SC_MSR into PV and HVM variants 
(Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Elide MSR_SPEC_CTRL handling in idle context when 
possible (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Rename bits of infrastructure to avoid NATIVE and 
VMEXIT (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Fold the XEN_IBRS_{SET,CLEAR} ALTERNATIVES together 
(Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Merge bti_ist_info and use_shadow_spec_ctrl into 
spec_ctrl_flags (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Express Xen's choice of MSR_SPEC_CTRL value as a 
variable (Andrew Cooper)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Read MSR_ARCH_CAPABILITIES only once (Andrew Cooper) 
[Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Assume that STIBP feature is always available (Boris 
Ostrovsky)  [Orabug: 28034172]  {CVE-2018-3639}
- x86/spec_ctrl: Updates to retpoline-safety decision making (Andrew 
Cooper)  [Orabug: 28034172]  {CVE-2018-3639}

[4.4.4-105.0.46.el6]
- BUILDINFO: xen commit=dc770041d983843c860c06d405054c0e01a4fd98
- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional 
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- one-off build