Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2020:0388-1
Rating: important
References: #1115045 #1126140 #1126141 #1126192 #1126195 #1126196 #1126201 #1135905 #1143797 #1145652 #1146874 #1149813 #1152497 #1154448 #1154456 #1154458 #1154461 #1155945 #1157888 #1158003 #1158004 #1158005 #1158006 #1158007 #1161181
Cross-References:CVE-2018-12207 CVE-2018-19965 CVE-2019-11135 CVE-2019-12067 CVE-2019-12068 CVE-2019-12155 CVE-2019-14378 CVE-2019-15890 CVE-2019-17340 CVE-2019-17341 CVE-2019-17342 CVE-2019-17343 CVE-2019-17344 CVE-2019-17347 CVE-2019-18420 CVE-2019-18421 CVE-2019-18424 CVE-2019-18425 CVE-2019-19577 CVE-2019-19578 CVE-2019-19579 CVE-2019-19580 CVE-2019-19581 CVE-2019-19583 CVE-2020-7211
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12-SP1
  • SUSE Linux Enterprise Server 12-SP1-LTSS

An update that fixes 25 vulnerabilities is now available.

Description:

This update for xen fixes the following issues:

  • CVE-2018-12207: Fixed a race condition where untrusted virtual machines could have been using the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional (bsc#1155945 XSA-304).
  • CVE-2018-19965: Fixed a DoS from attempting to use INVPCID with a non-canonical addresses (bsc#1115045 XSA-279).
  • CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate side-channel information leaks out of microarchitectural buffers, similar to the previously described "Microarchitectural Data Sampling" attack. (bsc#1152497 XSA-305).
  • CVE-2019-12067: Fixed a null pointer dereference in QEMU AHCI (bsc#1145652).
  • CVE-2019-12068: Fixed an infinite loop while executing script (bsc#1146874).
  • CVE-2019-12155: Fixed a null pointer dereference while releasing spice resources (bsc#1135905).
  • CVE-2019-14378: Fixed a heap buffer overflow during packet reassembly in slirp networking implementation (bsc#1143797).
  • CVE-2019-15890: Fixed a use-after-free during packet reassembly (bsc#1149813).
  • CVE-2019-17340: Fixed grant table transfer issues on large hosts (XSA-284 bsc#1126140).
  • CVE-2019-17341: Fixed a race with pass-through device hotplug (XSA-285 bsc#1126141).
  • CVE-2019-17342: Fixed steal_page violating page_struct access discipline (XSA-287 bsc#1126192).
  • CVE-2019-17343: Fixed an inconsistent PV IOMMU discipline (XSA-288 bsc#1126195).
  • CVE-2019-17344: Fixed a missing preemption in x86 PV page table unvalidation (XSA-290 bsc#1126196).
  • CVE-2019-17347: Fixed a PV kernel context switch corruption (XSA-293 bsc#1126201).
  • CVE-2019-18420: Fixed a hypervisor crash that could be caused by malicious x86 PV guests, resulting in a denial of service (bsc#1154448 XSA-296).
  • CVE-2019-18421: Fixed a privilege escalation through malicious PV guest administrators (bsc#1154458 XSA-299).
  • CVE-2019-18424: Fixed a privilege escalation through DMA to physical devices by untrusted domains (bsc#1154461 XSA-302).
  • CVE-2019-18425: Fixed a privilege escalation from 32-bit PV guest used mode (bsc#1154456 XSA-298).
  • 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-2019-19578: 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-2019-19579: Fixed a privilege escalation where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).
  • 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-2019-19581: Fixed a potential out of bounds on 32-bit Arm (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).

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 Server for SAP 12-SP1:
    zypper in -t patch SUSE-SLE-SAP-12-SP1-2020-388=1
  • SUSE Linux Enterprise Server 12-SP1-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2020-388=1

Package List:

  • SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):
    • xen-4.5.5_28-22.64.1
    • xen-debugsource-4.5.5_28-22.64.1
    • xen-doc-html-4.5.5_28-22.64.1
    • xen-kmp-default-4.5.5_28_k3.12.74_60.64.124-22.64.1
    • xen-kmp-default-debuginfo-4.5.5_28_k3.12.74_60.64.124-22.64.1
    • xen-libs-32bit-4.5.5_28-22.64.1
    • xen-libs-4.5.5_28-22.64.1
    • xen-libs-debuginfo-32bit-4.5.5_28-22.64.1
    • xen-libs-debuginfo-4.5.5_28-22.64.1
    • xen-tools-4.5.5_28-22.64.1
    • xen-tools-debuginfo-4.5.5_28-22.64.1
    • xen-tools-domU-4.5.5_28-22.64.1
    • xen-tools-domU-debuginfo-4.5.5_28-22.64.1
  • SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):
    • xen-4.5.5_28-22.64.1
    • xen-debugsource-4.5.5_28-22.64.1
    • xen-doc-html-4.5.5_28-22.64.1
    • xen-kmp-default-4.5.5_28_k3.12.74_60.64.124-22.64.1
    • xen-kmp-default-debuginfo-4.5.5_28_k3.12.74_60.64.124-22.64.1
    • xen-libs-32bit-4.5.5_28-22.64.1
    • xen-libs-4.5.5_28-22.64.1
    • xen-libs-debuginfo-32bit-4.5.5_28-22.64.1
    • xen-libs-debuginfo-4.5.5_28-22.64.1
    • xen-tools-4.5.5_28-22.64.1
    • xen-tools-debuginfo-4.5.5_28-22.64.1
    • xen-tools-domU-4.5.5_28-22.64.1
    • xen-tools-domU-debuginfo-4.5.5_28-22.64.1

References: