SUSE: 2019:2960-1 important: xen

    Date12 Nov 2019
    CategorySuSE
    113
    Posted ByLinuxSecurity Advisories
    An update that fixes 6 vulnerabilities is now available.
    
       SUSE Security Update: Security update for xen
    ______________________________________________________________________________
    
    Announcement ID:    SUSE-SU-2019:2960-1
    Rating:             important
    References:         #1152497 #1154448 #1154456 #1154458 #1154461 
                        #1155945 
    Cross-References:   CVE-2018-12207 CVE-2019-11135 CVE-2019-18420
                        CVE-2019-18421 CVE-2019-18424 CVE-2019-18425
                       
    Affected Products:
                        SUSE Linux Enterprise Module for Server Applications 15
                        SUSE Linux Enterprise Module for Basesystem 15
    ______________________________________________________________________________
    
       An update that fixes 6 vulnerabilities is now available.
    
    Description:
    
       This update for xen fixes the following issues:
    
       - CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a
         race condition in 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)
       - CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs
         with Transactional Memory support could be used to facilitate
         sidechannel information leaks out of microarchitectural buffers, similar
         to the previously described "Microarchitectural Data Sampling" attack.
         (bsc#1152497).
       - CVE-2019-18425: 32-bit PV guest user mode could elevate its privileges
         to that
         of the guest kernel. (bsc#1154456).
       - CVE-2019-18421: A malicious PV guest administrator may have been able to
         escalate their privilege to that of the host. (bsc#1154458).
       - CVE-2019-18420: Malicious x86 PV guests may have caused a hypervisor
         crash, resulting in a Denial of Service (Dos). (bsc#1154448)
    
    
    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:
    
          zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2019-2960=1
    
       - SUSE Linux Enterprise Module for Basesystem 15:
    
          zypper in -t patch SUSE-SLE-Module-Basesystem-15-2019-2960=1
    
    
    
    Package List:
    
       - SUSE Linux Enterprise Module for Server Applications 15 (x86_64):
    
          xen-4.10.4_06-3.25.1
          xen-debugsource-4.10.4_06-3.25.1
          xen-devel-4.10.4_06-3.25.1
          xen-tools-4.10.4_06-3.25.1
          xen-tools-debuginfo-4.10.4_06-3.25.1
    
       - SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
    
          xen-debugsource-4.10.4_06-3.25.1
          xen-libs-4.10.4_06-3.25.1
          xen-libs-debuginfo-4.10.4_06-3.25.1
          xen-tools-domU-4.10.4_06-3.25.1
          xen-tools-domU-debuginfo-4.10.4_06-3.25.1
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2018-12207.html
       https://www.suse.com/security/cve/CVE-2019-11135.html
       https://www.suse.com/security/cve/CVE-2019-18420.html
       https://www.suse.com/security/cve/CVE-2019-18421.html
       https://www.suse.com/security/cve/CVE-2019-18424.html
       https://www.suse.com/security/cve/CVE-2019-18425.html
       https://bugzilla.suse.com/1152497
       https://bugzilla.suse.com/1154448
       https://bugzilla.suse.com/1154456
       https://bugzilla.suse.com/1154458
       https://bugzilla.suse.com/1154461
       https://bugzilla.suse.com/1155945
    
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