[security-announce] SUSE-SU-2017:1145-1: important: Security update for xen

[news 28]

SUSE Security Update: Security update for xen

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Announcement ID: SUSE-SU-2017:1145-1

Rating: important

References: #1028655 #1029827 #1030144 #1034843 #1034844

#1034845 #1034994 #1035483

Cross-References: CVE-2016-9603 CVE-2017-7718 CVE-2017-7980

 

Affected Products:

SUSE Linux Enterprise Software Development Kit 11-SP4

SUSE Linux Enterprise Server 11-SP4

SUSE Linux Enterprise Debuginfo 11-SP4

______________________________________________________________________________

 

An update that solves three vulnerabilities and has 5 fixes

is now available.

 

Description:

 

 

This update for xen fixes several issues.

 

These security issues were fixed:

 

- A malicious 64-bit PV guest may be able to access all of system memory,

allowing for all of privilege escalation, host crashes, and information

leaks by placing a IRET hypercall in the middle of a multicall batch

(XSA-213, bsc#1034843)

- A malicious pair of guests may be able to access all of system memory,

allowing for all of privilege escalation, host crashes, and information

leaks because of a missing check when transfering pages via

GNTTABOP_transfer (XSA-214, bsc#1034844).

- CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS

privileged users to cause a denial of service (out-of-bounds read and

QEMU process crash) via vectors related to copying VGA data via the

cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions

(bsc#1034994).

- CVE-2016-9603: A privileged user within the guest VM could have caused a

heap overflow in the device model process, potentially escalating their

privileges to that of the device model process (bsc#1028655)

 

These non-security issues were fixed:

 

- bsc#1029827: Additional xenstore patch

 

 

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 11-SP4:

 

zypper in -t patch sdksp4-xen-13084=1

 

- SUSE Linux Enterprise Server 11-SP4:

 

zypper in -t patch slessp4-xen-13084=1

 

- SUSE Linux Enterprise Debuginfo 11-SP4:

 

zypper in -t patch dbgsp4-xen-13084=1

 

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

 

 

Package List:

 

- SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

 

xen-devel-4.4.4_18-57.1

 

- SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

 

xen-kmp-default-4.4.4_18_3.0.101_97-57.1

xen-libs-4.4.4_18-57.1

xen-tools-domU-4.4.4_18-57.1

 

- SUSE Linux Enterprise Server 11-SP4 (x86_64):

 

xen-4.4.4_18-57.1

xen-doc-html-4.4.4_18-57.1

xen-libs-32bit-4.4.4_18-57.1

xen-tools-4.4.4_18-57.1

 

- SUSE Linux Enterprise Server 11-SP4 (i586):

 

xen-kmp-pae-4.4.4_18_3.0.101_97-57.1

 

- SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

 

xen-debuginfo-4.4.4_18-57.1

xen-debugsource-4.4.4_18-57.1

 

 

References:

 

https://www.suse.com/security/cve/CVE-2016-9603.html

https://www.suse.com/security/cve/CVE-2017-7718.html

https://www.suse.com/security/cve/CVE-2017-7980.html

https://bugzilla.suse.com/1028655

https://bugzilla.suse.com/1029827

https://bugzilla.suse.com/1030144

https://bugzilla.suse.com/1034843

https://bugzilla.suse.com/1034844

https://bugzilla.suse.com/1034845

https://bugzilla.suse.com/1034994

https://bugzilla.suse.com/1035483

 

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