Security update for xen

This update for xen fixes several issues:

These security issues were fixed:

- CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a
memory leakage issue allowing a privileged user inside the guest to cause a DoS
and/or potentially crash the Qemu process on the host (bsc#1059777)
- CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or
buggy PV guest to cause DoS (XSA-242 bsc#1061084)
- CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or
buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially
allowing the guest to escalate its privilege (XSA-243 bsc#1061086)
- CVE-2017-15594: Problematic handling of the selector fields in the Interrupt
Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate
its privileges or cause DoS (XSA-244 bsc#1061087)
- CVE-2017-15591: Missing checks in the handling of DMOPs allowed malicious or
buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to
cause a DoS (XSA-238 bsc#1061077)
- CVE-2017-15589: Intercepted I/O write operations with less than a full machine
word's worth of data were not properly handled, which allowed a malicious
unprivileged x86 HVM guest to obtain sensitive information from the host or
other guests (XSA-239 bsc#1061080)
- CVE-2017-15595: In certain configurations of linear page tables a stack overflow
might have occured that allowed a malicious or buggy PV guest to cause DoS and
potentially privilege escalation and information leaks (XSA-240 bsc#1061081)
- CVE-2017-15588: Under certain conditions x86 PV guests could have caused the
hypervisor to miss a necessary TLB flush for a page. This allowed a malicious
x86 PV guest to access all of system memory, allowing for privilege escalation,
DoS, and information leaks (XSA-241 bsc#1061082)
- CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts
that allowed a malicious or buggy guest to cause DoS and potentially privilege
escalation and information leaks (XSA-237 bsc#1061076)
- bsc#1055321: When dealing with the grant map space of add-to-physmap
operations, ARM specific code failed to release a lock. This allowed a
malicious guest administrator to cause DoS (XSA-235)

This update was imported from the SUSE:SLE-12-SP3:Update update project.

Fixed bugs
bnc#1061076
VUL-0: CVE-2017-15590: xen: multiple MSI mapping issues on x86 (XSA-237)
bnc#1059777
VUL-1: CVE-2017-5526: xen: audio: memory leakage in es1370 device
bnc#1055321
VUL-0: xen: add-to-physmap error paths fail to release lock on ARM (XSA-235)
bnc#1061077
VUL-0: CVE-2017-15591: xen: DMOP map/unmap missing argument checks (XSA-238)
bnc#1027519
Xen: Missing upstream bug fixes
bnc#1061082
VUL-0: CVE-2017-15588: xen: Stale TLB entry due to page type release race (XSA-241)
bnc#1061081
VUL-0: CVE-2017-15595: xen: Unlimited recursion in linear pagetable de-typing (XSA-240)
bnc#1061080
VUL-0: CVE-2017-15589: xen: hypervisor stack leak in x86 I/O intercept code (XSA-239)
bnc#1061087
VUL-0: CVE-2017-15594: xen: x86: Incorrect handling of IST settings during CPU hotplug (XSA-244)
bnc#1061086
VUL-0: CVE-2017-15592: xen: x86: Incorrect handling of self-linear shadow mappings with translated guests (XSA-243)
bnc#1061084
VUL-0: CVE-2017-15593: xen: page type reference leak on x86 (XSA-242)
Selected Binaries
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