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[security-announce] SUSE-SU-2017:2812-1: important: Security update for xen
SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2812-1
Rating: important
References: #1059777 #1061076 #1061080 #1061081 #1061082
#1061084 #1061086 #1061087
Cross-References: CVE-2017-15588 CVE-2017-15589 CVE-2017-15590
CVE-2017-15592 CVE-2017-15593 CVE-2017-15594
CVE-2017-15595 CVE-2017-5526
Affected Products:
SUSE Linux Enterprise Server 11-SP3-LTSS
SUSE Linux Enterprise Point of Sale 11-SP3
SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

An update that fixes 8 vulnerabilities is now available.

Description:

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-2017-15589: 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)


Patch Instructions:

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

- SUSE Linux Enterprise Server 11-SP3-LTSS:

zypper in -t patch slessp3-xen-13320=1

- SUSE Linux Enterprise Point of Sale 11-SP3:

zypper in -t patch sleposp3-xen-13320=1

- SUSE Linux Enterprise Debuginfo 11-SP3:

zypper in -t patch dbgsp3-xen-13320=1

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


Package List:

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

xen-kmp-default-4.2.5_21_3.0.101_0.47.106.5-45.11.1
xen-libs-4.2.5_21-45.11.1
xen-tools-domU-4.2.5_21-45.11.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):

xen-4.2.5_21-45.11.1
xen-doc-html-4.2.5_21-45.11.1
xen-doc-pdf-4.2.5_21-45.11.1
xen-libs-32bit-4.2.5_21-45.11.1
xen-tools-4.2.5_21-45.11.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586):

xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.5-45.11.1

- SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

xen-kmp-default-4.2.5_21_3.0.101_0.47.106.5-45.11.1
xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.5-45.11.1
xen-libs-4.2.5_21-45.11.1
xen-tools-domU-4.2.5_21-45.11.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):

xen-debuginfo-4.2.5_21-45.11.1
xen-debugsource-4.2.5_21-45.11.1


References:

https://www.suse.com/security/cve/CVE-2017-15588.html
https://www.suse.com/security/cve/CVE-2017-15589.html
https://www.suse.com/security/cve/CVE-2017-15590.html
https://www.suse.com/security/cve/CVE-2017-15592.html
https://www.suse.com/security/cve/CVE-2017-15593.html
https://www.suse.com/security/cve/CVE-2017-15594.html
https://www.suse.com/security/cve/CVE-2017-15595.html
https://www.suse.com/security/cve/CVE-2017-5526.html
https://bugzilla.suse.com/1059777
https://bugzilla.suse.com/1061076
https://bugzilla.suse.com/1061080
https://bugzilla.suse.com/1061081
https://bugzilla.suse.com/1061082
https://bugzilla.suse.com/1061084
https://bugzilla.suse.com/1061086
https://bugzilla.suse.com/1061087

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