openSUSE: 2019:1199-1: important: Recommended xen

    Date12 Apr 2019
    CategoryopenSUSE
    319
    Posted ByLinuxSecurity Advisories
    An update that solves one vulnerability and has 13 fixes is now available.
       openSUSE Security Update: Recommended update for xen
    ______________________________________________________________________________
    
    Announcement ID:    openSUSE-SU-2019:1199-1
    Rating:             important
    References:         #1026236 #1027519 #1114988 #1126140 #1126141 
                        #1126192 #1126195 #1126196 #1126197 #1126198 
                        #1126201 #1126325 #1127400 #1127620 
    Cross-References:   CVE-2018-19967
    Affected Products:
                        openSUSE Leap 15.0
    ______________________________________________________________________________
    
       An update that solves one vulnerability and has 13 fixes is
       now available.
    
    Description:
    
       This update for xen fixes the following issues:
    
       Security issues fixed:
    
       - CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the
         host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)
       - Fixed an issue which could allow malicious PV guests may cause a host
         crash or gain access to data pertaining to other guests.Additionally,
         vulnerable configurations are likely to be unstable even in the absence
         of an attack (bsc#1126198).
       - Fixed multiple access violations introduced by XENMEM_exchange hypercall
         which could allow a single PV guest to leak arbitrary amounts of memory,
         leading to a denial of service (bsc#1126192).
       - Fixed an issue which could allow a malicious unprivileged guest
         userspace process to escalate its privilege to that of other userspace
         processes in the same guest and potentially thereby to that
         of the guest operating system (bsc#1126201).
       - Fixed an issue which could allow malicious or buggy x86 PV guest kernels
         to mount a Denial of Service attack affecting the whole system
         (bsc#1126197).
       - Fixed an issue which could allow an untrusted PV domain with access to a
         physical device to DMA into its own pagetables leading to privilege
         escalation (bsc#1126195).
       - Fixed an issue which could allow a malicious or buggy x86 PV guest
         kernels can mount a Denial of Service attack affecting the whole system
         (bsc#1126196).
       - Fixed an issue which could allow malicious 64bit PV guests to cause a
         host crash (bsc#1127400).
       - Fixed an issue which could allow malicious or buggy guests with passed
         through PCI devices to  be able to escalate their privileges, crash the
         host, or access data belonging to other guests. Additionally memory
         leaks were also possible (bsc#1126140).
       - Fixed a race condition issue which could allow malicious PV guests to
         escalate their privilege to that
         of the hypervisor (bsc#1126141).
    
       Other issues fixed:
    
       - Upstream bug fixes (bsc#1027519)
       - Fixed an issue where setup of grant_tables and other variables may fail
         (bsc#1126325).
       - Added a requirement for xen, xl.cfg firmware="pvgrub32|pvgrub64
         (bsc#1127620).
       - Added Xen cmdline option "suse_vtsc_tolerance" to avoid TSC emulation
         for HVM domUs (bsc#1026236).
    
       This update was imported from the SUSE:SLE-15:Update update project.
    
    
    Patch Instructions:
    
       To install this openSUSE 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:
    
       - openSUSE Leap 15.0:
    
          zypper in -t patch openSUSE-2019-1199=1
    
    
    
    Package List:
    
       - openSUSE Leap 15.0 (i586 x86_64):
    
          xen-debugsource-4.10.3_02-lp150.2.16.1
          xen-devel-4.10.3_02-lp150.2.16.1
          xen-libs-4.10.3_02-lp150.2.16.1
          xen-libs-debuginfo-4.10.3_02-lp150.2.16.1
          xen-tools-domU-4.10.3_02-lp150.2.16.1
          xen-tools-domU-debuginfo-4.10.3_02-lp150.2.16.1
    
       - openSUSE Leap 15.0 (x86_64):
    
          xen-4.10.3_02-lp150.2.16.1
          xen-doc-html-4.10.3_02-lp150.2.16.1
          xen-libs-32bit-4.10.3_02-lp150.2.16.1
          xen-libs-32bit-debuginfo-4.10.3_02-lp150.2.16.1
          xen-tools-4.10.3_02-lp150.2.16.1
          xen-tools-debuginfo-4.10.3_02-lp150.2.16.1
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2018-19967.html
       https://bugzilla.suse.com/1026236
       https://bugzilla.suse.com/1027519
       https://bugzilla.suse.com/1114988
       https://bugzilla.suse.com/1126140
       https://bugzilla.suse.com/1126141
       https://bugzilla.suse.com/1126192
       https://bugzilla.suse.com/1126195
       https://bugzilla.suse.com/1126196
       https://bugzilla.suse.com/1126197
       https://bugzilla.suse.com/1126198
       https://bugzilla.suse.com/1126201
       https://bugzilla.suse.com/1126325
       https://bugzilla.suse.com/1127400
       https://bugzilla.suse.com/1127620
    
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