Security update for xen

Announcement ID:	SUSE-SU-2017:1795-1
Rating:	important
References:	bsc#1014136 bsc#1026236 bsc#1027519 bsc#1031460 bsc#1032148 bsc#1034845 bsc#1036470 bsc#1037243 bsc#1042160 bsc#1042863 bsc#1042882 bsc#1042893 bsc#1042915 bsc#1042924 bsc#1042931 bsc#1042938 bsc#1043074 bsc#1043297
Cross-References:	CVE-2017-10911 CVE-2017-10912 CVE-2017-10913 CVE-2017-10914 CVE-2017-10915 CVE-2017-10917 CVE-2017-10918 CVE-2017-10920 CVE-2017-10921 CVE-2017-10922 CVE-2017-8112 CVE-2017-8309 CVE-2017-8905 CVE-2017-9330 CVE-2017-9374 CVE-2017-9503
CVSS scores:	CVE-2017-10911 ( SUSE ): 4.3 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N CVE-2017-10911 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-10912 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10912 ( NVD ): 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10913 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10913 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2017-10914 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10914 ( NVD ): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2017-10915 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10915 ( NVD ): 9.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10917 ( SUSE ): 7.9 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H CVE-2017-10917 ( NVD ): 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVE-2017-10918 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10918 ( NVD ): 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10920 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10920 ( NVD ): 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10921 ( SUSE ): 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10921 ( NVD ): 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2017-10922 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-8112 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-8309 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-8905 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-8905 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2017-9330 ( SUSE ): 3.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L CVE-2017-9330 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-9330 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-9374 ( SUSE ): 3.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L CVE-2017-9374 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-9374 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-9503 ( SUSE ): 3.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L CVE-2017-9503 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2017-9503 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Server 12 LTSS 12 SUSE Linux Enterprise Server for SAP Applications 12

An update that solves 16 vulnerabilities and has two security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

• CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a null pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043297)
• CVE-2017-9374: Missing free of 's->ipacket', causes a host memory leak, allowing for DoS (bsc#1043074)
• CVE-2017-10911: blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863)
• CVE-2017-10912: Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)
• CVE-2017-10913, CVE-2017-10914: Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)
• CVE-2017-10915: 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)
• CVE-2017-10917: Missing NULL pointer check in event channel poll allows guests to DoS the host (XSA-221, bsc#1042924)
• CVE-2017-10918: Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)
• CVE-2017-10920, CVE-2017-10921, CVE-2017-10922: 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)
• CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036470)
• CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845).

These non-security issues were fixed:

• bsc#1031460: Fixed DomU Live Migration
• bsc#1014136: Fixed kdump SLES12-SP2
• bsc#1026236: Equalized paravirtualized vs. fully virtualized migration speed
• bsc#1032148: Ensure that time doesn't goes backwards during live migration of HVM domU
• bsc#1027519: Included various upstream patches

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Enterprise Server for SAP Applications 12
  zypper in -t patch SUSE-SLE-SAP-12-2017-1118=1
• SUSE Linux Enterprise Server 12 LTSS 12
  zypper in -t patch SUSE-SLE-SERVER-12-2017-1118=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 (x86_64)
  • xen-libs-32bit-4.4.4_21-22.42.1
  • xen-4.4.4_21-22.42.1
  • xen-tools-debuginfo-4.4.4_21-22.42.1
  • xen-doc-html-4.4.4_21-22.42.1
  • xen-tools-4.4.4_21-22.42.1
  • xen-tools-domU-4.4.4_21-22.42.1
  • xen-tools-domU-debuginfo-4.4.4_21-22.42.1
  • xen-kmp-default-debuginfo-4.4.4_21_k3.12.61_52.77-22.42.1
  • xen-debugsource-4.4.4_21-22.42.1
  • xen-kmp-default-4.4.4_21_k3.12.61_52.77-22.42.1
  • xen-libs-4.4.4_21-22.42.1
  • xen-libs-debuginfo-4.4.4_21-22.42.1
  • xen-libs-debuginfo-32bit-4.4.4_21-22.42.1
• SUSE Linux Enterprise Server 12 LTSS 12 (x86_64)
  • xen-libs-32bit-4.4.4_21-22.42.1
  • xen-4.4.4_21-22.42.1
  • xen-tools-debuginfo-4.4.4_21-22.42.1
  • xen-doc-html-4.4.4_21-22.42.1
  • xen-tools-4.4.4_21-22.42.1
  • xen-tools-domU-4.4.4_21-22.42.1
  • xen-tools-domU-debuginfo-4.4.4_21-22.42.1
  • xen-kmp-default-debuginfo-4.4.4_21_k3.12.61_52.77-22.42.1
  • xen-debugsource-4.4.4_21-22.42.1
  • xen-kmp-default-4.4.4_21_k3.12.61_52.77-22.42.1
  • xen-libs-4.4.4_21-22.42.1
  • xen-libs-debuginfo-4.4.4_21-22.42.1
  • xen-libs-debuginfo-32bit-4.4.4_21-22.42.1

References:

• https://www.suse.com/security/cve/CVE-2017-10911.html
• https://www.suse.com/security/cve/CVE-2017-10912.html
• https://www.suse.com/security/cve/CVE-2017-10913.html
• https://www.suse.com/security/cve/CVE-2017-10914.html
• https://www.suse.com/security/cve/CVE-2017-10915.html
• https://www.suse.com/security/cve/CVE-2017-10917.html
• https://www.suse.com/security/cve/CVE-2017-10918.html
• https://www.suse.com/security/cve/CVE-2017-10920.html
• https://www.suse.com/security/cve/CVE-2017-10921.html
• https://www.suse.com/security/cve/CVE-2017-10922.html
• https://www.suse.com/security/cve/CVE-2017-8112.html
• https://www.suse.com/security/cve/CVE-2017-8309.html
• https://www.suse.com/security/cve/CVE-2017-8905.html
• https://www.suse.com/security/cve/CVE-2017-9330.html
• https://www.suse.com/security/cve/CVE-2017-9374.html
• https://www.suse.com/security/cve/CVE-2017-9503.html
• https://bugzilla.suse.com/show_bug.cgi?id=1014136
• https://bugzilla.suse.com/show_bug.cgi?id=1026236
• https://bugzilla.suse.com/show_bug.cgi?id=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1031460
• https://bugzilla.suse.com/show_bug.cgi?id=1032148
• https://bugzilla.suse.com/show_bug.cgi?id=1034845
• https://bugzilla.suse.com/show_bug.cgi?id=1036470
• https://bugzilla.suse.com/show_bug.cgi?id=1037243
• https://bugzilla.suse.com/show_bug.cgi?id=1042160
• https://bugzilla.suse.com/show_bug.cgi?id=1042863
• https://bugzilla.suse.com/show_bug.cgi?id=1042882
• https://bugzilla.suse.com/show_bug.cgi?id=1042893
• https://bugzilla.suse.com/show_bug.cgi?id=1042915
• https://bugzilla.suse.com/show_bug.cgi?id=1042924
• https://bugzilla.suse.com/show_bug.cgi?id=1042931
• https://bugzilla.suse.com/show_bug.cgi?id=1042938
• https://bugzilla.suse.com/show_bug.cgi?id=1043074
• https://bugzilla.suse.com/show_bug.cgi?id=1043297