ESB-2017.1658 - [SUSE] xen: Multiple vulnerabilities 2017-07-03

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1658
                          Security update for xen
                                3 July 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:          xen
Publisher:        SUSE
Operating System: SUSE
Impact/Access:    Execute Arbitrary Code/Commands -- Existing Account
                  Increased Privileges            -- Existing Account
                  Denial of Service               -- Existing Account
                  Access Confidential Data        -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2017-9330 CVE-2017-8309 

Reference:        ESB-2017.1655
                  ESB-2017.1263

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   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:1742-1
Rating:             important
References:         #1027519 #1035642 #1037243 #1042160 #1042882 
                    #1042893 #1042915 #1042923 #1042924 #1042931 
                    #1042938 
Cross-References:   CVE-2017-8309 CVE-2017-9330
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 12-SP2
                    SUSE Linux Enterprise Server 12-SP2
                    SUSE Linux Enterprise Desktop 12-SP2
______________________________________________________________________________

   An update that solves two vulnerabilities and has 9 fixes
   is now available.

Description:

   This update for xen fixes several issues.

   These security issues were fixed:

   - Page transfer might have allowed PV guest to elevate privilege (XSA-217,
     bsc#1042882)
   - Races in the grant table unmap code allowed for informations leaks and
     potentially privilege escalation (XSA-218, bsc#1042893)
   - Insufficient reference counts during shadow emulation allowed a
     malicious pair of guest to elevate their privileges to the privileges
     that XEN runs under (XSA-219, bsc#1042915)
   - Missing NULL pointer check in event channel poll allows guests to DoS
     the host (XSA-221, bsc#1042924)
   - Stale P2M mappings due to insufficient error checking allowed malicious
     guest to leak information or elevate privileges (XSA-222, bsc#1042931)
   - Grant table operations mishandled reference counts allowing malicious
     guests to escape (XSA-224, bsc#1042938)
   - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
     to cause a denial of service (infinite loop) by leveraging an incorrect
     return value (bsc#1042160)
   - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
     to cause a denial of service (memory consumption) by repeatedly starting
     and stopping audio capture (bsc#1037243)
   - PKRU and BND* leakage between vCPU-s might have leaked information to
     other guests (XSA-220, bsc#1042923)

   These non-security issues were fixed:

   - bsc#1027519: Included various upstream patches
   - bsc#1035642: Ensure that rpmbuild works


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Software Development Kit 12-SP2:

      zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-1087=1

   - SUSE Linux Enterprise Server 12-SP2:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1087=1

   - SUSE Linux Enterprise Desktop 12-SP2:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1087=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64):

      xen-debugsource-4.7.2_06-42.1
      xen-devel-4.7.2_06-42.1

   - SUSE Linux Enterprise Server 12-SP2 (x86_64):

      xen-4.7.2_06-42.1
      xen-debugsource-4.7.2_06-42.1
      xen-doc-html-4.7.2_06-42.1
      xen-libs-32bit-4.7.2_06-42.1
      xen-libs-4.7.2_06-42.1
      xen-libs-debuginfo-32bit-4.7.2_06-42.1
      xen-libs-debuginfo-4.7.2_06-42.1
      xen-tools-4.7.2_06-42.1
      xen-tools-debuginfo-4.7.2_06-42.1
      xen-tools-domU-4.7.2_06-42.1
      xen-tools-domU-debuginfo-4.7.2_06-42.1

   - SUSE Linux Enterprise Desktop 12-SP2 (x86_64):

      xen-4.7.2_06-42.1
      xen-debugsource-4.7.2_06-42.1
      xen-libs-32bit-4.7.2_06-42.1
      xen-libs-4.7.2_06-42.1
      xen-libs-debuginfo-32bit-4.7.2_06-42.1
      xen-libs-debuginfo-4.7.2_06-42.1


References:

   https://www.suse.com/security/cve/CVE-2017-8309.html
   https://www.suse.com/security/cve/CVE-2017-9330.html
   https://bugzilla.suse.com/1027519
   https://bugzilla.suse.com/1035642
   https://bugzilla.suse.com/1037243
   https://bugzilla.suse.com/1042160
   https://bugzilla.suse.com/1042882
   https://bugzilla.suse.com/1042893
   https://bugzilla.suse.com/1042915
   https://bugzilla.suse.com/1042923
   https://bugzilla.suse.com/1042924
   https://bugzilla.suse.com/1042931
   https://bugzilla.suse.com/1042938

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