ESB-2017.2192 - [SUSE] xen: Multiple vulnerabilities 2017-09-01

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

                               ESB-2017.2192
               SUSE Security Update: Security update for xen
                             1 September 2017

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

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

Product:          xen
Publisher:        SUSE
Operating System: SUSE
Impact/Access:    Increased Privileges     -- Existing Account      
                  Denial of Service        -- Remote/Unauthenticated
                  Access Confidential Data -- Existing Account      
Resolution:       Patch/Upgrade
CVE Names:        CVE-2017-12137 CVE-2017-12135 CVE-2017-11434
                  CVE-2017-11334 CVE-2017-10806 CVE-2017-10664

Reference:        ESB-2017.1962
                  ESB-2017.1827

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   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:2319-1
Rating:             important
References:         #1002573 #1046637 #1047675 #1048920 #1049578 
                    #1051787 #1051788 #1052686 
Cross-References:   CVE-2017-10664 CVE-2017-10806 CVE-2017-11334
                    CVE-2017-11434 CVE-2017-12135 CVE-2017-12137
                   
Affected Products:
                    SUSE OpenStack Cloud 6
                    SUSE Linux Enterprise Server for SAP 12-SP1
                    SUSE Linux Enterprise Server 12-SP1-LTSS
______________________________________________________________________________

   An update that solves 6 vulnerabilities and has two fixes
   is now available.

Description:

   This update for xen fixes several issues.

   These security issues were fixed:

   - CVE-2017-12135: Unbounded recursion in grant table code allowed a
     malicious guest to crash the host or potentially escalate
     privileges/leak information (XSA-226, bsc#1051787).
   - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for
     privilege escalation (XSA-227, bsc#1051788).
   - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local
     guest OS users to cause a denial of service (out-of-bounds read) via a
     crafted DHCP
     options string (bsc#1049578).
   - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote
     attackers to cause a denial of service (daemon crash) by disconnecting
     during a server-to-client reply attempt (bsc#1046637).
   - CVE-2017-11334: The address_space_write_continue function in exec.c
     allowed local guest OS privileged users to cause a denial of service
     (out-of-bounds access and guest instance crash) by leveraging use of
     qemu_map_ram_ptr to access guest ram block area (bsc#1048920).
   - CVE-2017-10806: Stack-based buffer overflow in hw/usb/redirect.c allowed
     local guest OS users to cause a denial of service via vectors related to
     logging debug messages (bsc#1047675).
   - bsc#1052686: Premature clearing of GTF_writing / GTF_reading lead to
     potentially leaking sensitive information (XSA-230).

   This non-security issue was fixed:

   - bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd


Patch Instructions:

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

   - SUSE OpenStack Cloud 6:

      zypper in -t patch SUSE-OpenStack-Cloud-6-2017-1428=1

   - SUSE Linux Enterprise Server for SAP 12-SP1:

      zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1428=1

   - SUSE Linux Enterprise Server 12-SP1-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1428=1

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


Package List:

   - SUSE OpenStack Cloud 6 (x86_64):

      xen-4.5.5_14-22.25.1
      xen-debugsource-4.5.5_14-22.25.1
      xen-doc-html-4.5.5_14-22.25.1
      xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-libs-32bit-4.5.5_14-22.25.1
      xen-libs-4.5.5_14-22.25.1
      xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
      xen-libs-debuginfo-4.5.5_14-22.25.1
      xen-tools-4.5.5_14-22.25.1
      xen-tools-debuginfo-4.5.5_14-22.25.1
      xen-tools-domU-4.5.5_14-22.25.1
      xen-tools-domU-debuginfo-4.5.5_14-22.25.1

   - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

      xen-4.5.5_14-22.25.1
      xen-debugsource-4.5.5_14-22.25.1
      xen-doc-html-4.5.5_14-22.25.1
      xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-libs-32bit-4.5.5_14-22.25.1
      xen-libs-4.5.5_14-22.25.1
      xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
      xen-libs-debuginfo-4.5.5_14-22.25.1
      xen-tools-4.5.5_14-22.25.1
      xen-tools-debuginfo-4.5.5_14-22.25.1
      xen-tools-domU-4.5.5_14-22.25.1
      xen-tools-domU-debuginfo-4.5.5_14-22.25.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

      xen-4.5.5_14-22.25.1
      xen-debugsource-4.5.5_14-22.25.1
      xen-doc-html-4.5.5_14-22.25.1
      xen-kmp-default-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-kmp-default-debuginfo-4.5.5_14_k3.12.74_60.64.54-22.25.1
      xen-libs-32bit-4.5.5_14-22.25.1
      xen-libs-4.5.5_14-22.25.1
      xen-libs-debuginfo-32bit-4.5.5_14-22.25.1
      xen-libs-debuginfo-4.5.5_14-22.25.1
      xen-tools-4.5.5_14-22.25.1
      xen-tools-debuginfo-4.5.5_14-22.25.1
      xen-tools-domU-4.5.5_14-22.25.1
      xen-tools-domU-debuginfo-4.5.5_14-22.25.1


References:

   https://www.suse.com/security/cve/CVE-2017-10664.html
   https://www.suse.com/security/cve/CVE-2017-10806.html
   https://www.suse.com/security/cve/CVE-2017-11334.html
   https://www.suse.com/security/cve/CVE-2017-11434.html
   https://www.suse.com/security/cve/CVE-2017-12135.html
   https://www.suse.com/security/cve/CVE-2017-12137.html
   https://bugzilla.suse.com/1002573
   https://bugzilla.suse.com/1046637
   https://bugzilla.suse.com/1047675
   https://bugzilla.suse.com/1048920
   https://bugzilla.suse.com/1049578
   https://bugzilla.suse.com/1051787
   https://bugzilla.suse.com/1051788
   https://bugzilla.suse.com/1052686

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