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    SUSE: 2020:14521-1 important: xen

    Date 22 Oct 2020
    Posted By LinuxSecurity Advisories
    An update that fixes 11 vulnerabilities is now available.
       SUSE Security Update: Security update for xen
    Announcement ID:    SUSE-SU-2020:14521-1
    Rating:             important
    References:         #1172205 #1173378 #1173380 #1175534 #1176343 
                        #1176344 #1176345 #1176346 #1176347 #1176348 
    Cross-References:   CVE-2020-0543 CVE-2020-14364 CVE-2020-15565
                        CVE-2020-15567 CVE-2020-25595 CVE-2020-25596
                        CVE-2020-25597 CVE-2020-25600 CVE-2020-25601
                        CVE-2020-25603 CVE-2020-25604
    Affected Products:
                        SUSE Linux Enterprise Server 11-SP4-LTSS
                        SUSE Linux Enterprise Debuginfo 11-SP4
       An update that fixes 11 vulnerabilities is now available.
       This update for xen fixes the following issues:
       - CVE-2020-0543: Fixed a leak of Special Register Buffer Data Sampling
         (SRBDS) aka "CrossTalk" (bsc#1172205,XSA-320)
       - CVE-2020-14364: Fixed an out-of-bounds read/write access while
         processing usb packets (bsc#1175534).
       - CVE-2020-15565: Fixed an issue cache write (bsc#1173378,XSA-321).
       - CVE-2020-15567: Fixed an issue with non-atomic  modification of live EPT
         PTE (bsc#1173380,XSA-328)
       - CVE-2020-25595: Fixed an issue where PCI passthrough code was reading
         back hardware registers (bsc#1176344,XSA-337)
       - CVE-2020-25596: Fixed a potential denial of service in x86 pv guest
         kernel via SYSENTER (bsc#1176345,XSA-339)
       - CVE-2020-25597: Fixed an issue where a valid event channels may not turn
         invalid (bsc#1176346,XSA-338)
       - CVE-2020-25600: Fixed out of bounds event channels available to 32-bit
         x86 domains (bsc#1176348,XSA-342)
       - CVE-2020-25601: Fixed an issue due to lack of preemption in
         evtchn_reset() / evtchn_destroy() (bsc#1176350,XSA-344)
       - CVE-2020-25603: Fixed an issue due to  missing barriers when
         accessing/allocating an event channel (bsc#1176347,XSA-340)
       - CVE-2020-25604: Fixed a race condition when migrating timers between x86
         HVM vCPU-s (bsc#1176343,XSA-336)
    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 11-SP4-LTSS:
          zypper in -t patch slessp4-xen-14521=1
       - SUSE Linux Enterprise Debuginfo 11-SP4:
          zypper in -t patch dbgsp4-xen-14521=1
    Package List:
       - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):
       - SUSE Linux Enterprise Server 11-SP4-LTSS (x86_64):
       - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):
       - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):


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