ESB-2018.3883 - [Linux] qemu: Denial of service - Existing account 2018-12-17

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

                               ESB-2018.3883
                         Security update for qemu
                             17 December 2018

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

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

Product:           qemu
Publisher:         SUSE
Operating System:  Linux variants
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-18849 CVE-2018-17963 CVE-2018-17962
                   CVE-2018-17958 CVE-2018-15746 CVE-2018-10839

Reference:         ESB-2018.3782
                   ESB-2018.3698

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20184129-1/

- --------------------------BEGIN INCLUDED TEXT--------------------

   SUSE Security Update: Security update for qemu
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:4129-1
Rating:             moderate
References:         #1100408 #1106222 #1110910 #1111006 #1111010
                    #1111013 #1114422
Cross-References:   CVE-2018-10839 CVE-2018-15746 CVE-2018-17958
                    CVE-2018-17962 CVE-2018-17963 CVE-2018-18849

Affected Products:
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
                    SUSE CaaS Platform ALL
                    SUSE CaaS Platform 3.0
______________________________________________________________________________

   An update that solves 6 vulnerabilities and has one errata
   is now available.

Description:

   This update for qemu fixes the following issues:

   Security issues fixed:

   - CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to
     an integer overflow, which could lead to buffer overflow issue. It could
     occur when receiving packets over the network. A user inside guest could
     use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).
   - CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest
     users to cause a denial of service (guest crash) by leveraging
     mishandling of the seccomp policy for threads other than the main thread
     (bsc#1106222).
   - CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in
     hw/net/rtl8139.c because an incorrect integer data type is used
     (bsc#1111006).
   - CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in
     hw/net/pcnet.c because an incorrect integer data type is used
     (bsc#1111010).
   - CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts
     packet sizes greater than INT_MAX, which allows attackers to cause a
     denial of service or possibly have unspecified other impact.
     (bsc#1111013)
   - CVE-2018-18849: Fixed an out of bounds memory access issue that was
     found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a
     message in lsi_do_msgin. It could occur during migration if the
     'msg_len' field has an invalid value. A user/process could use this flaw
     to crash the Qemu process resulting in DoS (bsc#1114422).

   Non-security issues fixed:

   - Improving disk performance for qemu on xen (bsc#1100408)


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 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-2944=1

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-2944=1

   - SUSE CaaS Platform ALL:

      To install this update, use the SUSE CaaS Platform Velum dashboard.
      It will inform you if it detects new updates and let you then trigger
      updating of the complete cluster in a controlled way.

   - SUSE CaaS Platform 3.0:

      To install this update, use the SUSE CaaS Platform Velum dashboard.
      It will inform you if it detects new updates and let you then trigger
      updating of the complete cluster in a controlled way.



Package List:

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

      qemu-2.9.1-6.22.3
      qemu-block-curl-2.9.1-6.22.3
      qemu-block-curl-debuginfo-2.9.1-6.22.3
      qemu-block-iscsi-2.9.1-6.22.3
      qemu-block-iscsi-debuginfo-2.9.1-6.22.3
      qemu-block-ssh-2.9.1-6.22.3
      qemu-block-ssh-debuginfo-2.9.1-6.22.3
      qemu-debugsource-2.9.1-6.22.3
      qemu-guest-agent-2.9.1-6.22.3
      qemu-guest-agent-debuginfo-2.9.1-6.22.3
      qemu-lang-2.9.1-6.22.3
      qemu-tools-2.9.1-6.22.3
      qemu-tools-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 x86_64):

      qemu-block-rbd-2.9.1-6.22.3
      qemu-block-rbd-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (s390x x86_64):

      qemu-kvm-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (aarch64):

      qemu-arm-2.9.1-6.22.3
      qemu-arm-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (ppc64le):

      qemu-ppc-2.9.1-6.22.3
      qemu-ppc-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (noarch):

      qemu-ipxe-1.0.0+-6.22.3
      qemu-seabios-1.10.2-6.22.3
      qemu-sgabios-8-6.22.3
      qemu-vgabios-1.10.2-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (x86_64):

      qemu-x86-2.9.1-6.22.3
      qemu-x86-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Server 12-SP3 (s390x):

      qemu-s390-2.9.1-6.22.3
      qemu-s390-debuginfo-2.9.1-6.22.3

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      qemu-2.9.1-6.22.3
      qemu-block-curl-2.9.1-6.22.3
      qemu-block-curl-debuginfo-2.9.1-6.22.3
      qemu-debugsource-2.9.1-6.22.3
      qemu-kvm-2.9.1-6.22.3
      qemu-tools-2.9.1-6.22.3
      qemu-tools-debuginfo-2.9.1-6.22.3
      qemu-x86-2.9.1-6.22.3

   - SUSE Linux Enterprise Desktop 12-SP3 (noarch):

      qemu-ipxe-1.0.0+-6.22.3
      qemu-seabios-1.10.2-6.22.3
      qemu-sgabios-8-6.22.3
      qemu-vgabios-1.10.2-6.22.3

   - SUSE CaaS Platform ALL (x86_64):

      qemu-debugsource-2.9.1-6.22.3
      qemu-guest-agent-2.9.1-6.22.3
      qemu-guest-agent-debuginfo-2.9.1-6.22.3

   - SUSE CaaS Platform 3.0 (x86_64):

      qemu-debugsource-2.9.1-6.22.3
      qemu-guest-agent-2.9.1-6.22.3
      qemu-guest-agent-debuginfo-2.9.1-6.22.3


References:

   https://www.suse.com/security/cve/CVE-2018-10839.html
   https://www.suse.com/security/cve/CVE-2018-15746.html
   https://www.suse.com/security/cve/CVE-2018-17958.html
   https://www.suse.com/security/cve/CVE-2018-17962.html
   https://www.suse.com/security/cve/CVE-2018-17963.html
   https://www.suse.com/security/cve/CVE-2018-18849.html
   https://bugzilla.suse.com/1100408
   https://bugzilla.suse.com/1106222
   https://bugzilla.suse.com/1110910
   https://bugzilla.suse.com/1111006
   https://bugzilla.suse.com/1111010
   https://bugzilla.suse.com/1111013
   https://bugzilla.suse.com/1114422

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