ESB-2018.2696 - [SUSE] qemu: Denial of service - Existing account 2018-09-11

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

                               ESB-2018.2696
                         Security update for qemu
                             11 September 2018

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

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

Product:           qemu
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-12617  

Reference:         ASB-2018.0028
                   ASB-2018.0014
                   ESB-2018.2678
                   ESB-2018.2577

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20182679-1/

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   SUSE Security Update: Security update for qemu
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2679-1
Rating:             moderate
References:         #1094898 #1098735 #1102604 #1103628 #1105279 
                    
Cross-References:   CVE-2018-12617
Affected Products:
                    SUSE Linux Enterprise Module for Server Applications 15
                    SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________

   An update that solves one vulnerability and has four fixes
   is now available.

Description:

   This update for qemu fixes the following issues:

   This security issue was fixed:

   - CVE-2018-12617: qmp_guest_file_read had an integer overflow that could
     have been exploited by sending a crafted QMP command (including
     guest-file-read with a large count value) to the agent via the listening
     socket causing DoS (bsc#1098735)

   These non-security issues were fixed:

   - Allow kvm group access to /dev/sev (bsc#1102604).
   - Fix for the value used for reduced_phys_bits.  Please update the
     reduced_phys_bits value used on the commandline or in libvirt XML to the
     value 1 (explicitly set now in QEMU code). (bsc#1103628)
   - Fix (again) the qemu guest agent udev rule file, which got unfixed in a
     series of unfortunate events (bsc#1094898 and now bsc#1105279)


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-15-2018-1866=1

   - SUSE Linux Enterprise Module for Basesystem 15:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-1866=1



Package List:

   - SUSE Linux Enterprise Module for Server Applications 15 (aarch64 ppc64le s390x x86_64):

      qemu-2.11.2-9.9.1
      qemu-block-curl-2.11.2-9.9.1
      qemu-block-curl-debuginfo-2.11.2-9.9.1
      qemu-block-iscsi-2.11.2-9.9.1
      qemu-block-iscsi-debuginfo-2.11.2-9.9.1
      qemu-block-rbd-2.11.2-9.9.1
      qemu-block-rbd-debuginfo-2.11.2-9.9.1
      qemu-block-ssh-2.11.2-9.9.1
      qemu-block-ssh-debuginfo-2.11.2-9.9.1
      qemu-debuginfo-2.11.2-9.9.1
      qemu-debugsource-2.11.2-9.9.1
      qemu-guest-agent-2.11.2-9.9.1
      qemu-guest-agent-debuginfo-2.11.2-9.9.1
      qemu-lang-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (s390x x86_64):

      qemu-kvm-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (aarch64):

      qemu-arm-2.11.2-9.9.1
      qemu-arm-debuginfo-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (ppc64le):

      qemu-ppc-2.11.2-9.9.1
      qemu-ppc-debuginfo-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (x86_64):

      qemu-x86-2.11.2-9.9.1
      qemu-x86-debuginfo-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (noarch):

      qemu-ipxe-1.0.0-9.9.1
      qemu-seabios-1.11.0-9.9.1
      qemu-sgabios-8-9.9.1
      qemu-vgabios-1.11.0-9.9.1

   - SUSE Linux Enterprise Module for Server Applications 15 (s390x):

      qemu-s390-2.11.2-9.9.1
      qemu-s390-debuginfo-2.11.2-9.9.1

   - SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):

      qemu-debuginfo-2.11.2-9.9.1
      qemu-debugsource-2.11.2-9.9.1
      qemu-tools-2.11.2-9.9.1
      qemu-tools-debuginfo-2.11.2-9.9.1


References:

   https://www.suse.com/security/cve/CVE-2018-12617.html
   https://bugzilla.suse.com/1094898
   https://bugzilla.suse.com/1098735
   https://bugzilla.suse.com/1102604
   https://bugzilla.suse.com/1103628
   https://bugzilla.suse.com/1105279

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