Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2019:3338-1
Rating: important
References: #1027519 #1152497 #1157047 #1157888 #1158003 #1158004 #1158005 #1158006 #1158007
Cross-References:CVE-2019-19577 CVE-2019-19578 CVE-2019-19579 CVE-2019-19580 CVE-2019-19581 CVE-2019-19582 CVE-2019-19583
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15-SP1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1

An update that solves 7 vulnerabilities and has two fixes is now available.

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).
  • Fixed an issue where PCI passthrough failed on AMD machine xen host (bsc#1157047).

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 Module for Server Applications 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2019-3338=1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-3338=1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2019-3338=1

Package List:

  • SUSE Linux Enterprise Module for Server Applications 15-SP1 (x86_64):
    • xen-4.12.1_06-3.9.1
    • xen-debugsource-4.12.1_06-3.9.1
    • xen-devel-4.12.1_06-3.9.1
    • xen-tools-4.12.1_06-3.9.1
    • xen-tools-debuginfo-4.12.1_06-3.9.1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1 (aarch64 x86_64):
    • xen-debugsource-4.12.1_06-3.9.1
    • xen-doc-html-4.12.1_06-3.9.1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1 (aarch64):
    • xen-4.12.1_06-3.9.1
    • xen-devel-4.12.1_06-3.9.1
    • xen-libs-4.12.1_06-3.9.1
    • xen-libs-debuginfo-4.12.1_06-3.9.1
    • xen-tools-4.12.1_06-3.9.1
    • xen-tools-debuginfo-4.12.1_06-3.9.1
    • xen-tools-domU-4.12.1_06-3.9.1
    • xen-tools-domU-debuginfo-4.12.1_06-3.9.1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1 (x86_64):
    • xen-libs-32bit-4.12.1_06-3.9.1
    • xen-libs-32bit-debuginfo-4.12.1_06-3.9.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP1 (x86_64):
    • xen-debugsource-4.12.1_06-3.9.1
    • xen-libs-4.12.1_06-3.9.1
    • xen-libs-debuginfo-4.12.1_06-3.9.1
    • xen-tools-domU-4.12.1_06-3.9.1
    • xen-tools-domU-debuginfo-4.12.1_06-3.9.1

References: