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[security-announce] openSUSE-SU-2017:2916-1: important: Security update for xen
openSUSE Security Update: Security update for xen

Announcement ID: openSUSE-SU-2017:2916-1
Rating: important
References: #1027519 #1057358 #1059777 #1061076 #1061077
#1061080 #1061081 #1061082 #1061084 #1061086
Cross-References: CVE-2017-15588 CVE-2017-15589 CVE-2017-15590
CVE-2017-15591 CVE-2017-15592 CVE-2017-15593
CVE-2017-15594 CVE-2017-15595 CVE-2017-5526

Affected Products:
openSUSE Leap 42.2

An update that solves 9 vulnerabilities and has two fixes
is now available.


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
- 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

This non-security issue was fixed:

- bsc#1057358: Fixed boot when secure boot is enabled

This update was imported from the SUSE:SLE-12-SP2:Update update project.

Patch Instructions:

To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

- openSUSE Leap 42.2:

zypper in -t patch openSUSE-2017-1239=1

To bring your system up-to-date, use "zypper patch".

Package List:

- openSUSE Leap 42.2 (i586 x86_64):


- openSUSE Leap 42.2 (x86_64):



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