Security update for xen

Announcement ID:	SUSE-SU-2020:2786-1
Rating:	important
References:	bsc#1027519 bsc#1175534 bsc#1176339 bsc#1176343 bsc#1176344 bsc#1176345 bsc#1176346 bsc#1176347 bsc#1176348 bsc#1176349 bsc#1176350
Cross-References:	CVE-2020-14364 CVE-2020-25595 CVE-2020-25596 CVE-2020-25597 CVE-2020-25599 CVE-2020-25600 CVE-2020-25601 CVE-2020-25602 CVE-2020-25603 CVE-2020-25604
CVSS scores:	CVE-2020-14364 ( SUSE ): 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2020-14364 ( NVD ): 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2020-25595 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-25595 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-25596 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25596 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25597 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25597 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25599 ( SUSE ): 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-25599 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-25600 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2020-25600 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25601 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25601 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25602 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-25602 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2020-25603 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-25603 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-25604 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25604 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9

An update that solves 10 vulnerabilities and has one security fix can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2020-25602: Fixed an issue where there was a crash when handling guest access to MSR_MISC_ENABLE was thrown (bsc#1176339,XSA-333)
• CVE-2020-25598: Added a missing unlock in XENMEM_acquire_resource error path (bsc#1176341,XSA-334)
• CVE-2020-25604: Fixed a race condition when migrating timers between x86 HVM vCPU-s (bsc#1176343,XSA-336)
• CVE-2020-25595: Fixed an issue where PCI passthrough code was reading back hardware registers (bsc#1176344,XSA-337)
• CVE-2020-25597: Fixed an issue where a valid event channels may not turn invalid (bsc#1176346,XSA-338)
• CVE-2020-25596: Fixed a potential denial of service in x86 pv guest kernel via SYSENTER (bsc#1176345,XSA-339)
• CVE-2020-25603: Fixed an issue due to missing barriers when accessing/allocating an event channel (bsc#1176347,XSA-340)
• CVE-2020-25600: Fixed out of bounds event channels available to 32-bit x86 domains (bsc#1176348,XSA-342)
• CVE-2020-25599: Fixed race conditions with evtchn_reset() (bsc#1176349,XSA-343)
• CVE-2020-25601: Fixed an issue due to lack of preemption in evtchn_reset() / evtchn_destroy() (bsc#1176350,XSA-344)
• CVE-2020-14364: Fixed an out-of-bounds read/write access while processing usb packets (bsc#1175534).
• Various bug fixes (bsc#1027519)

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 9
  zypper in -t patch SUSE-OpenStack-Cloud-9-2020-2786=1
• SUSE OpenStack Cloud Crowbar 9
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2020-2786=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-SAP-12-SP4-2020-2786=1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-ESPOS-2020-2786=1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2020-2786=1

Package List:

• SUSE OpenStack Cloud 9 (x86_64)
  • xen-doc-html-4.11.4_08-2.36.1
  • xen-libs-debuginfo-4.11.4_08-2.36.1
  • xen-debugsource-4.11.4_08-2.36.1
  • xen-libs-4.11.4_08-2.36.1
  • xen-tools-domU-debuginfo-4.11.4_08-2.36.1
  • xen-tools-debuginfo-4.11.4_08-2.36.1
  • xen-tools-4.11.4_08-2.36.1
  • xen-libs-debuginfo-32bit-4.11.4_08-2.36.1
  • xen-4.11.4_08-2.36.1
  • xen-libs-32bit-4.11.4_08-2.36.1
  • xen-tools-domU-4.11.4_08-2.36.1
• SUSE OpenStack Cloud Crowbar 9 (x86_64)
  • xen-doc-html-4.11.4_08-2.36.1
  • xen-libs-debuginfo-4.11.4_08-2.36.1
  • xen-debugsource-4.11.4_08-2.36.1
  • xen-libs-4.11.4_08-2.36.1
  • xen-tools-domU-debuginfo-4.11.4_08-2.36.1
  • xen-tools-debuginfo-4.11.4_08-2.36.1
  • xen-tools-4.11.4_08-2.36.1
  • xen-libs-debuginfo-32bit-4.11.4_08-2.36.1
  • xen-4.11.4_08-2.36.1
  • xen-libs-32bit-4.11.4_08-2.36.1
  • xen-tools-domU-4.11.4_08-2.36.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • xen-doc-html-4.11.4_08-2.36.1
  • xen-libs-debuginfo-4.11.4_08-2.36.1
  • xen-debugsource-4.11.4_08-2.36.1
  • xen-libs-4.11.4_08-2.36.1
  • xen-tools-domU-debuginfo-4.11.4_08-2.36.1
  • xen-tools-debuginfo-4.11.4_08-2.36.1
  • xen-tools-4.11.4_08-2.36.1
  • xen-libs-debuginfo-32bit-4.11.4_08-2.36.1
  • xen-4.11.4_08-2.36.1
  • xen-libs-32bit-4.11.4_08-2.36.1
  • xen-tools-domU-4.11.4_08-2.36.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (x86_64)
  • xen-doc-html-4.11.4_08-2.36.1
  • xen-libs-debuginfo-4.11.4_08-2.36.1
  • xen-debugsource-4.11.4_08-2.36.1
  • xen-libs-4.11.4_08-2.36.1
  • xen-tools-domU-debuginfo-4.11.4_08-2.36.1
  • xen-tools-debuginfo-4.11.4_08-2.36.1
  • xen-tools-4.11.4_08-2.36.1
  • xen-libs-debuginfo-32bit-4.11.4_08-2.36.1
  • xen-4.11.4_08-2.36.1
  • xen-libs-32bit-4.11.4_08-2.36.1
  • xen-tools-domU-4.11.4_08-2.36.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (x86_64)
  • xen-doc-html-4.11.4_08-2.36.1
  • xen-libs-debuginfo-4.11.4_08-2.36.1
  • xen-debugsource-4.11.4_08-2.36.1
  • xen-libs-4.11.4_08-2.36.1
  • xen-tools-domU-debuginfo-4.11.4_08-2.36.1
  • xen-tools-debuginfo-4.11.4_08-2.36.1
  • xen-tools-4.11.4_08-2.36.1
  • xen-libs-debuginfo-32bit-4.11.4_08-2.36.1
  • xen-4.11.4_08-2.36.1
  • xen-libs-32bit-4.11.4_08-2.36.1
  • xen-tools-domU-4.11.4_08-2.36.1

References:

• https://www.suse.com/security/cve/CVE-2020-14364.html
• https://www.suse.com/security/cve/CVE-2020-25595.html
• https://www.suse.com/security/cve/CVE-2020-25596.html
• https://www.suse.com/security/cve/CVE-2020-25597.html
• https://www.suse.com/security/cve/CVE-2020-25599.html
• https://www.suse.com/security/cve/CVE-2020-25600.html
• https://www.suse.com/security/cve/CVE-2020-25601.html
• https://www.suse.com/security/cve/CVE-2020-25602.html
• https://www.suse.com/security/cve/CVE-2020-25603.html
• https://www.suse.com/security/cve/CVE-2020-25604.html
• https://bugzilla.suse.com/show_bug.cgi?id=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1175534
• https://bugzilla.suse.com/show_bug.cgi?id=1176339
• https://bugzilla.suse.com/show_bug.cgi?id=1176343
• https://bugzilla.suse.com/show_bug.cgi?id=1176344
• https://bugzilla.suse.com/show_bug.cgi?id=1176345
• https://bugzilla.suse.com/show_bug.cgi?id=1176346
• https://bugzilla.suse.com/show_bug.cgi?id=1176347
• https://bugzilla.suse.com/show_bug.cgi?id=1176348
• https://bugzilla.suse.com/show_bug.cgi?id=1176349
• https://bugzilla.suse.com/show_bug.cgi?id=1176350