Security update for xen

Announcement ID:	SUSE-SU-2019:3310-1
Rating:	important
References:	bsc#1154460 bsc#1154461 bsc#1154464 bsc#1157888 bsc#1158003 bsc#1158004 bsc#1158005 bsc#1158006 bsc#1158007
Cross-References:	CVE-2019-18422 CVE-2019-18423 CVE-2019-18424 CVE-2019-19577 CVE-2019-19578 CVE-2019-19579 CVE-2019-19580 CVE-2019-19581 CVE-2019-19582 CVE-2019-19583
CVSS scores:	CVE-2019-18422 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-18423 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-18424 ( SUSE ): 7.6 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2019-18424 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-19577 ( SUSE ): 7.2 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2019-19577 ( NVD ): 7.2 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2019-19578 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2019-19578 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2019-19579 ( SUSE ): 6.9 CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2019-19579 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-19580 ( NVD ): 6.6 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2019-19581 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2019-19582 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2019-19582 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2019-19583 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise Desktop 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Software Development Kit 12 SP4

An update that solves 10 vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307).
• CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to bitmaps with a compile time known size of 64 (bsc#1158003 XSA-307).
• CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest,leading to a guest denial of service (bsc#1158004 XSA-308).
• CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309).
• CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310).
• CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311).
• CVE-2019-19579: Fixed a privilege escaltion where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).
• CVE-2019-18423: A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). (bsc#1154460).
• CVE-2019-18424: An untrusted domain with access to a physical device can DMA into host memory, leading to privilege escalation. (bsc#1154461).
• CVE-2019-18422: A malicious ARM guest might contrive to arrange for critical Xen code to run with interrupts erroneously enabled. This could lead to data corruption, denial of service, or possibly even privilege escalation. However a precise attack technique has not been identified. (bsc#1154464)

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 Desktop 12 SP4
  zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-3310=1
• SUSE Linux Enterprise Software Development Kit 12 SP4
  zypper in -t patch SUSE-SLE-SDK-12-SP4-2019-3310=1
• SUSE Linux Enterprise High Performance Computing 12 SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3310=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3310=1
• SUSE Linux Enterprise Server 12 SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3310=1

Package List:

• SUSE Linux Enterprise Desktop 12 SP4 (x86_64)
  • xen-4.11.3_02-2.20.1
  • xen-debugsource-4.11.3_02-2.20.1
  • xen-libs-32bit-4.11.3_02-2.20.1
  • xen-libs-debuginfo-4.11.3_02-2.20.1
  • xen-libs-4.11.3_02-2.20.1
  • xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
• SUSE Linux Enterprise Software Development Kit 12 SP4 (aarch64 x86_64)
  • xen-devel-4.11.3_02-2.20.1
  • xen-debugsource-4.11.3_02-2.20.1
• SUSE Linux Enterprise High Performance Computing 12 SP4 (x86_64)
  • xen-4.11.3_02-2.20.1
  • xen-debugsource-4.11.3_02-2.20.1
  • xen-tools-debuginfo-4.11.3_02-2.20.1
  • xen-libs-32bit-4.11.3_02-2.20.1
  • xen-doc-html-4.11.3_02-2.20.1
  • xen-libs-debuginfo-4.11.3_02-2.20.1
  • xen-tools-4.11.3_02-2.20.1
  • xen-libs-4.11.3_02-2.20.1
  • xen-tools-domU-debuginfo-4.11.3_02-2.20.1
  • xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
  • xen-tools-domU-4.11.3_02-2.20.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • xen-4.11.3_02-2.20.1
  • xen-debugsource-4.11.3_02-2.20.1
  • xen-tools-debuginfo-4.11.3_02-2.20.1
  • xen-libs-32bit-4.11.3_02-2.20.1
  • xen-doc-html-4.11.3_02-2.20.1
  • xen-libs-debuginfo-4.11.3_02-2.20.1
  • xen-tools-4.11.3_02-2.20.1
  • xen-libs-4.11.3_02-2.20.1
  • xen-tools-domU-debuginfo-4.11.3_02-2.20.1
  • xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
  • xen-tools-domU-4.11.3_02-2.20.1
• SUSE Linux Enterprise Server 12 SP4 (x86_64)
  • xen-4.11.3_02-2.20.1
  • xen-debugsource-4.11.3_02-2.20.1
  • xen-tools-debuginfo-4.11.3_02-2.20.1
  • xen-libs-32bit-4.11.3_02-2.20.1
  • xen-doc-html-4.11.3_02-2.20.1
  • xen-libs-debuginfo-4.11.3_02-2.20.1
  • xen-tools-4.11.3_02-2.20.1
  • xen-libs-4.11.3_02-2.20.1
  • xen-tools-domU-debuginfo-4.11.3_02-2.20.1
  • xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
  • xen-tools-domU-4.11.3_02-2.20.1

References:

• https://www.suse.com/security/cve/CVE-2019-18422.html
• https://www.suse.com/security/cve/CVE-2019-18423.html
• https://www.suse.com/security/cve/CVE-2019-18424.html
• https://www.suse.com/security/cve/CVE-2019-19577.html
• https://www.suse.com/security/cve/CVE-2019-19578.html
• https://www.suse.com/security/cve/CVE-2019-19579.html
• https://www.suse.com/security/cve/CVE-2019-19580.html
• https://www.suse.com/security/cve/CVE-2019-19581.html
• https://www.suse.com/security/cve/CVE-2019-19582.html
• https://www.suse.com/security/cve/CVE-2019-19583.html
• https://bugzilla.suse.com/show_bug.cgi?id=1154460
• https://bugzilla.suse.com/show_bug.cgi?id=1154461
• https://bugzilla.suse.com/show_bug.cgi?id=1154464
• https://bugzilla.suse.com/show_bug.cgi?id=1157888
• https://bugzilla.suse.com/show_bug.cgi?id=1158003
• https://bugzilla.suse.com/show_bug.cgi?id=1158004
• https://bugzilla.suse.com/show_bug.cgi?id=1158005
• https://bugzilla.suse.com/show_bug.cgi?id=1158006
• https://bugzilla.suse.com/show_bug.cgi?id=1158007