[security-announce] openSUSE-SU-2017:1221-1: important: Security update for xen

[news 28]

openSUSE Security Update: Security update for xen

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Announcement ID: openSUSE-SU-2017:1221-1

Rating: important

References: #1022703 #1028655 #1029827 #1030144 #1034843

#1034844 #1034994 #1036146

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

Affected Products:

openSUSE Leap 42.2

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An update that solves two vulnerabilities and has 6 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

- bsc#1036146: Xen VM dumped core to wrong path

- bsc#1022703: Prevent Xen HVM guest with OVMF to hang with unattached

CDRom

 

This update was imported from the SUSE:SLE-12-SP2:Update update project.

 

 

Patch Instructions:

 

To install this openSUSE Security Update use YaST online_update.

Alternatively you can run the command listed for your product:

 

- openSUSE Leap 42.2:

 

zypper in -t patch openSUSE-2017-563=1

 

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

 

 

Package List:

 

- openSUSE Leap 42.2 (i586 x86_64):

 

xen-debugsource-4.7.2_04-11.6.1

xen-devel-4.7.2_04-11.6.1

xen-libs-4.7.2_04-11.6.1

xen-libs-debuginfo-4.7.2_04-11.6.1

xen-tools-domU-4.7.2_04-11.6.1

xen-tools-domU-debuginfo-4.7.2_04-11.6.1

 

- openSUSE Leap 42.2 (x86_64):

 

xen-4.7.2_04-11.6.1

xen-doc-html-4.7.2_04-11.6.1

xen-libs-32bit-4.7.2_04-11.6.1

xen-libs-debuginfo-32bit-4.7.2_04-11.6.1

xen-tools-4.7.2_04-11.6.1

xen-tools-debuginfo-4.7.2_04-11.6.1

 

 

References:

 

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

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

https://bugzilla.suse.com/1022703

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/1034994

https://bugzilla.suse.com/1036146

 

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