Security update for xen

Announcement ID: SUSE-SU-2020:2791-1
Rating: important
References:
Cross-References:
CVSS scores:
  • 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-2020-25598 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2020-25598 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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:
  • Basesystem Module 15-SP2
  • Server Applications Module 15-SP2
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1

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)
  • Various other 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:

  • Basesystem Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-2791=1
  • Server Applications Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2020-2791=1

Package List:

  • Basesystem Module 15-SP2 (x86_64)
    • xen-debugsource-4.13.1_08-3.10.1
    • xen-tools-domU-debuginfo-4.13.1_08-3.10.1
    • xen-tools-domU-4.13.1_08-3.10.1
    • xen-libs-debuginfo-4.13.1_08-3.10.1
    • xen-libs-4.13.1_08-3.10.1
  • Server Applications Module 15-SP2 (x86_64)
    • xen-debugsource-4.13.1_08-3.10.1
    • xen-4.13.1_08-3.10.1
    • xen-tools-4.13.1_08-3.10.1
    • xen-tools-debuginfo-4.13.1_08-3.10.1
    • xen-devel-4.13.1_08-3.10.1
  • Server Applications Module 15-SP2 (noarch)
    • xen-tools-xendomains-wait-disk-4.13.1_08-3.10.1

References: