SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2017:1742-1
Rating: important
References: #1027519 #1035642 #1037243 #1042160 #1042882
#1042893 #1042915 #1042923 #1042924 #1042931
#1042938
Cross-References: CVE-2017-8309 CVE-2017-9330
Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Server 12-SP2
SUSE Linux Enterprise Desktop 12-SP2
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An update that solves two vulnerabilities and has 9 fixes
is now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:

– Page transfer might have allowed PV guest to elevate privilege (XSA-217,
bsc#1042882)
– Races in the grant table unmap code allowed for informations leaks and
potentially privilege escalation (XSA-218, bsc#1042893)
– Insufficient reference counts during shadow emulation allowed a
malicious pair of guest to elevate their privileges to the privileges
that XEN runs under (XSA-219, bsc#1042915)
– Missing NULL pointer check in event channel poll allows guests to DoS
the host (XSA-221, bsc#1042924)
– Stale P2M mappings due to insufficient error checking allowed malicious
guest to leak information or elevate privileges (XSA-222, bsc#1042931)
– Grant table operations mishandled reference counts allowing malicious
guests to escape (XSA-224, bsc#1042938)
– CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
to cause a denial of service (infinite loop) by leveraging an incorrect
return value (bsc#1042160)
– CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
to cause a denial of service (memory consumption) by repeatedly starting
and stopping audio capture (bsc#1037243)
– PKRU and BND* leakage between vCPU-s might have leaked information to
other guests (XSA-220, bsc#1042923)

These non-security issues were fixed:

– bsc#1027519: Included various upstream patches
– bsc#1035642: Ensure that rpmbuild works

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 Software Development Kit 12-SP2:

zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-1087=1

– SUSE Linux Enterprise Server 12-SP2:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1087=1

– SUSE Linux Enterprise Desktop 12-SP2:

zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1087=1

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

Package List:

– SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64):

xen-debugsource-4.7.2_06-42.1
xen-devel-4.7.2_06-42.1

– SUSE Linux Enterprise Server 12-SP2 (x86_64):

xen-4.7.2_06-42.1
xen-debugsource-4.7.2_06-42.1
xen-doc-html-4.7.2_06-42.1
xen-libs-32bit-4.7.2_06-42.1
xen-libs-4.7.2_06-42.1
xen-libs-debuginfo-32bit-4.7.2_06-42.1
xen-libs-debuginfo-4.7.2_06-42.1
xen-tools-4.7.2_06-42.1
xen-tools-debuginfo-4.7.2_06-42.1
xen-tools-domU-4.7.2_06-42.1
xen-tools-domU-debuginfo-4.7.2_06-42.1

– SUSE Linux Enterprise Desktop 12-SP2 (x86_64):

xen-4.7.2_06-42.1
xen-debugsource-4.7.2_06-42.1
xen-libs-32bit-4.7.2_06-42.1
xen-libs-4.7.2_06-42.1
xen-libs-debuginfo-32bit-4.7.2_06-42.1
xen-libs-debuginfo-4.7.2_06-42.1

References:

https://www.suse.com/security/cve/CVE-2017-8309.html
https://www.suse.com/security/cve/CVE-2017-9330.html
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1035642
https://bugzilla.suse.com/1037243
https://bugzilla.suse.com/1042160
https://bugzilla.suse.com/1042882
https://bugzilla.suse.com/1042893
https://bugzilla.suse.com/1042915
https://bugzilla.suse.com/1042923
https://bugzilla.suse.com/1042924
https://bugzilla.suse.com/1042931
https://bugzilla.suse.com/1042938

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