Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2020:2788-1
Rating: important
References: #1027519 #1175534 #1176339 #1176341 #1176343 #1176344 #1176345 #1176346 #1176347 #1176348 #1176349 #1176350
Cross-References:CVE-2020-14364 CVE-2020-25595 CVE-2020-25596 CVE-2020-25597 CVE-2020-25598 CVE-2020-25599 CVE-2020-25600 CVE-2020-25601 CVE-2020-25602 CVE-2020-25603 CVE-2020-25604
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP5
  • SUSE Linux Enterprise Server 12-SP5

An update that solves 11 vulnerabilities and has one errata is now available.


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 Security 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 Software Development Kit 12-SP5:
    zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-2788=1
  • SUSE Linux Enterprise Server 12-SP5:
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-2788=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 x86_64):
    • xen-debugsource-4.12.3_08-3.24.1
    • xen-devel-4.12.3_08-3.24.1
  • SUSE Linux Enterprise Server 12-SP5 (x86_64):
    • xen-4.12.3_08-3.24.1
    • xen-debugsource-4.12.3_08-3.24.1
    • xen-doc-html-4.12.3_08-3.24.1
    • xen-libs-32bit-4.12.3_08-3.24.1
    • xen-libs-4.12.3_08-3.24.1
    • xen-libs-debuginfo-32bit-4.12.3_08-3.24.1
    • xen-libs-debuginfo-4.12.3_08-3.24.1
    • xen-tools-4.12.3_08-3.24.1
    • xen-tools-debuginfo-4.12.3_08-3.24.1
    • xen-tools-domU-4.12.3_08-3.24.1
    • xen-tools-domU-debuginfo-4.12.3_08-3.24.1