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Test ID:1.3.6.1.4.1.25623.1.1.4.2017.2812.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2017:2812-1)
Summary:The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2017:2812-1 advisory.
Description:Summary:
The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2017:2812-1 advisory.

Vulnerability Insight:
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)

Affected Software/OS:
'xen' package(s) on SUSE Linux Enterprise Server 11-SP3, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Debuginfo 11-SP3

Solution:
Please install the updated package(s).

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-5526
BugTraq ID: 95669
http://www.securityfocus.com/bid/95669
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
http://www.openwall.com/lists/oss-security/2017/01/18/1
http://www.openwall.com/lists/oss-security/2017/01/18/8
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