SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2017:3212-1
Rating: important
References: #1061075 #1061081 #1061086 #1063123 #1068187
#1068191
Cross-References: CVE-2017-15289 CVE-2017-15592 CVE-2017-15595
CVE-2017-15597
Affected Products:
SUSE Linux Enterprise Server 11-SP3-LTSS
SUSE Linux Enterprise Point of Sale 11-SP3
SUSE Linux Enterprise Debuginfo 11-SP3
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An update that solves four vulnerabilities and has two
fixes is now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:

– bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD)
code allowed for DoS (XSA-246)
– bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged
guests to retain a writable mapping of freed memory leading to
information leaks, privilege escalation or DoS (XSA-247).
– CVE-2017-15289: The mode4and5 write functions allowed local OS guest
privileged users to cause a denial of service (out-of-bounds write
access and Qemu process crash) via vectors related to dst calculation
(bsc#1063123)
– CVE-2017-15597: A grant copy operation being done on a grant of a dying
domain allowed a malicious guest administrator to corrupt hypervisor
memory, allowing for DoS or potentially privilege escalation and
information leaks (bsc#1061075).
– CVE-2017-15595: x86 PV guest OS users were able to cause a DoS
(unbounded recursion, stack consumption, and hypervisor crash) or
possibly gain privileges via crafted page-table stacking (bsc#1061081).
– CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS
(hypervisor crash) or possibly gain privileges because self-linear
shadow mappings were mishandled for translated guests (bsc#1061086).

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-13366=1

– SUSE Linux Enterprise Point of Sale 11-SP3:

zypper in -t patch sleposp3-xen-13366=1

– SUSE Linux Enterprise Debuginfo 11-SP3:

zypper in -t patch dbgsp3-xen-13366=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_0.47.106.8-45.16.1
xen-libs-4.2.5_21-45.16.1
xen-tools-domU-4.2.5_21-45.16.1

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

xen-4.2.5_21-45.16.1
xen-doc-html-4.2.5_21-45.16.1
xen-doc-pdf-4.2.5_21-45.16.1
xen-libs-32bit-4.2.5_21-45.16.1
xen-tools-4.2.5_21-45.16.1

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

xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.8-45.16.1

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

xen-kmp-default-4.2.5_21_3.0.101_0.47.106.8-45.16.1
xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.8-45.16.1
xen-libs-4.2.5_21-45.16.1
xen-tools-domU-4.2.5_21-45.16.1

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

xen-debuginfo-4.2.5_21-45.16.1
xen-debugsource-4.2.5_21-45.16.1

References:

https://www.suse.com/security/cve/CVE-2017-15289.html
https://www.suse.com/security/cve/CVE-2017-15592.html
https://www.suse.com/security/cve/CVE-2017-15595.html
https://www.suse.com/security/cve/CVE-2017-15597.html
https://bugzilla.suse.com/1061075
https://bugzilla.suse.com/1061081
https://bugzilla.suse.com/1061086
https://bugzilla.suse.com/1063123
https://bugzilla.suse.com/1068187
https://bugzilla.suse.com/1068191

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