Security update for xen

Announcement ID:	SUSE-SU-2018:2081-1
Rating:	important
References:	bsc#1027519 bsc#1087289 bsc#1094725 bsc#1095242 bsc#1096224 bsc#1097521 bsc#1097522 bsc#1097523
Cross-References:	CVE-2018-11806 CVE-2018-12891 CVE-2018-12892 CVE-2018-12893 CVE-2018-3665
CVSS scores:	CVE-2018-11806 ( SUSE ): 5.0 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2018-11806 ( NVD ): 8.2 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2018-12891 ( SUSE ): 2.5 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVE-2018-12891 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2018-12892 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2018-12892 ( NVD ): 9.9 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2018-12893 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-12893 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2018-3665 ( SUSE ): 4.3 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N CVE-2018-3665 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Products:	SUSE Enterprise Storage 4 SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE OpenStack Cloud 7

An update that solves five vulnerabilities and has three security fixes can now be installed.

Description:

This update for xen fixes the following issues:

Security issues fixed:

• CVE-2018-12891: Fix preemption checks bypass in x86 PV MM handling (XSA-264) (bsc#1097521).
• CVE-2018-12892: Fix libxl failure to honour readonly flag on HVM emulated SCSI disks (XSA-266) (bsc#1097523).
• CVE-2018-12893: Fix #DB exception safety check that could be triggered by a guest (XSA-265) (bsc#1097522).
• CVE-2018-11806: Fix heap buffer overflow while reassembling fragmented datagrams (bsc#1096224).
• CVE-2018-3665: Fix lazy FP Save/Restore (XSA-267) (bsc#1095242).

Bug fixes:

• bsc#1027519: Update to Xen 4.7.6 bug fix only release.
• bsc#1087289: Xen BUG at sched_credit.c:1663.
• bsc#1094725: virsh blockresize does not work with Xen qdisks.

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 OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2018-1414=1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2018-1414=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SAP-12-SP2-2018-1414=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-1414=1
• SUSE Enterprise Storage 4
  zypper in -t patch SUSE-Storage-4-2018-1414=1

Package List:

• SUSE OpenStack Cloud 7 (x86_64)
  • xen-libs-debuginfo-4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo-4.7.6_02-43.36.1
  • xen-debugsource-4.7.6_02-43.36.1
  • xen-tools-4.7.6_02-43.36.1
  • xen-doc-html-4.7.6_02-43.36.1
  • xen-tools-debuginfo-4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit-4.7.6_02-43.36.1
  • xen-libs-32bit-4.7.6_02-43.36.1
  • xen-libs-4.7.6_02-43.36.1
  • xen-4.7.6_02-43.36.1
  • xen-tools-domU-4.7.6_02-43.36.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
  • xen-libs-debuginfo-4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo-4.7.6_02-43.36.1
  • xen-debugsource-4.7.6_02-43.36.1
  • xen-tools-4.7.6_02-43.36.1
  • xen-doc-html-4.7.6_02-43.36.1
  • xen-tools-debuginfo-4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit-4.7.6_02-43.36.1
  • xen-libs-32bit-4.7.6_02-43.36.1
  • xen-libs-4.7.6_02-43.36.1
  • xen-4.7.6_02-43.36.1
  • xen-tools-domU-4.7.6_02-43.36.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
  • xen-libs-debuginfo-4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo-4.7.6_02-43.36.1
  • xen-debugsource-4.7.6_02-43.36.1
  • xen-tools-4.7.6_02-43.36.1
  • xen-doc-html-4.7.6_02-43.36.1
  • xen-tools-debuginfo-4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit-4.7.6_02-43.36.1
  • xen-libs-32bit-4.7.6_02-43.36.1
  • xen-libs-4.7.6_02-43.36.1
  • xen-4.7.6_02-43.36.1
  • xen-tools-domU-4.7.6_02-43.36.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (x86_64)
  • xen-libs-debuginfo-4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo-4.7.6_02-43.36.1
  • xen-debugsource-4.7.6_02-43.36.1
  • xen-tools-4.7.6_02-43.36.1
  • xen-doc-html-4.7.6_02-43.36.1
  • xen-tools-debuginfo-4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit-4.7.6_02-43.36.1
  • xen-libs-32bit-4.7.6_02-43.36.1
  • xen-libs-4.7.6_02-43.36.1
  • xen-4.7.6_02-43.36.1
  • xen-tools-domU-4.7.6_02-43.36.1
• SUSE Enterprise Storage 4 (x86_64)
  • xen-libs-debuginfo-4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo-4.7.6_02-43.36.1
  • xen-debugsource-4.7.6_02-43.36.1
  • xen-tools-4.7.6_02-43.36.1
  • xen-doc-html-4.7.6_02-43.36.1
  • xen-tools-debuginfo-4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit-4.7.6_02-43.36.1
  • xen-libs-32bit-4.7.6_02-43.36.1
  • xen-libs-4.7.6_02-43.36.1
  • xen-4.7.6_02-43.36.1
  • xen-tools-domU-4.7.6_02-43.36.1

References:

• https://www.suse.com/security/cve/CVE-2018-11806.html
• https://www.suse.com/security/cve/CVE-2018-12891.html
• https://www.suse.com/security/cve/CVE-2018-12892.html
• https://www.suse.com/security/cve/CVE-2018-12893.html
• https://www.suse.com/security/cve/CVE-2018-3665.html
• https://bugzilla.suse.com/show_bug.cgi?id=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1087289
• https://bugzilla.suse.com/show_bug.cgi?id=1094725
• https://bugzilla.suse.com/show_bug.cgi?id=1095242
• https://bugzilla.suse.com/show_bug.cgi?id=1096224
• https://bugzilla.suse.com/show_bug.cgi?id=1097521
• https://bugzilla.suse.com/show_bug.cgi?id=1097522
• https://bugzilla.suse.com/show_bug.cgi?id=1097523