[security-announce] openSUSE-SU-2017:0665-1: important: Security update for xen

[news 28]

openSUSE Security Update: Security update for xen

______________________________________________________________________________

 

Announcement ID: openSUSE-SU-2017:0665-1

Rating: important

References: #1000195 #1002496 #1005028 #1012651 #1014298

#1014300 #1015169 #1016340 #1022871 #1023004

#1024834

Cross-References: CVE-2016-9921 CVE-2016-9922 CVE-2017-2615

CVE-2017-2620

Affected Products:

openSUSE Leap 42.2

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An update that solves four vulnerabilities and has 7 fixes

is now available.

 

Description:

 

 

This update for xen fixes several issues.

 

These security issues were fixed:

 

- CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine

cirrus_bitblt_cputovideo failed to check the memory region, allowing for

an out-of-bounds write that allows for privilege escalation

(bsc#1024834).

- CVE-2017-2615: An error in the bitblt copy operation could have allowed

a malicious guest administrator to cause an out of bounds memory access,

possibly leading to information disclosure or privilege escalation

(bsc#1023004).

- A malicious guest could have, by frequently rebooting over extended

periods of time, run the host system out of memory, resulting in a

Denial of Service (DoS) (bsc#1022871)

- CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable

to a divide by zero issue while copying VGA data. A privileged user

inside guest could have used this flaw to crash the process instance on

the host, resulting in DoS (bsc#1015169

 

These non-security issues were fixed:

 

- bsc#1000195: Prevent panic on CPU0 while booting on SLES 11 SP3

- bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd

- bsc#1005028: Fixed building Xen RPMs from Sources

 

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-2017-329=1

 

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

 

 

Package List:

 

- openSUSE Leap 42.2 (i586 x86_64):

 

xen-debugsource-4.7.1_06-9.2

xen-devel-4.7.1_06-9.2

xen-libs-4.7.1_06-9.2

xen-libs-debuginfo-4.7.1_06-9.2

xen-tools-domU-4.7.1_06-9.2

xen-tools-domU-debuginfo-4.7.1_06-9.2

 

- openSUSE Leap 42.2 (x86_64):

 

xen-4.7.1_06-9.2

xen-doc-html-4.7.1_06-9.2

xen-libs-32bit-4.7.1_06-9.2

xen-libs-debuginfo-32bit-4.7.1_06-9.2

xen-tools-4.7.1_06-9.2

xen-tools-debuginfo-4.7.1_06-9.2

 

 

References:

 

https://www.suse.com/security/cve/CVE-2016-9921.html

https://www.suse.com/security/cve/CVE-2016-9922.html

https://www.suse.com/security/cve/CVE-2017-2615.html

https://www.suse.com/security/cve/CVE-2017-2620.html

https://bugzilla.suse.com/1000195

https://bugzilla.suse.com/1002496

https://bugzilla.suse.com/1005028

https://bugzilla.suse.com/1012651

https://bugzilla.suse.com/1014298

https://bugzilla.suse.com/1014300

https://bugzilla.suse.com/1015169

https://bugzilla.suse.com/1016340

https://bugzilla.suse.com/1022871

https://bugzilla.suse.com/1023004

https://bugzilla.suse.com/1024834

 

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