SUSE-SU-2018:3975-1: moderate: Security update for kvm

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for kvm
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:3975-1
Rating:             moderate
References:         #1106222 #1110910 #1111006 #1111010 #1111013 
                    #1112185 #1114422 
Cross-References:   CVE-2018-10839 CVE-2018-15746 CVE-2018-17958
                    CVE-2018-17962 CVE-2018-17963 CVE-2018-18438
                    CVE-2018-18849
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4
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   An update that fixes 7 vulnerabilities is now available.

Description:

   This update for kvm 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).
   - CVE-2018-18438: Fixed integer overflows because IOReadHandler and its
     associated functions use a signed integer data type for a size value
     (bnc#1112185).


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:

      zypper in -t patch slessp4-kvm-13891=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4 (i586 s390x x86_64):

      kvm-1.4.2-60.18.2


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-2018-18438.html
   https://www.suse.com/security/cve/CVE-2018-18849.html
   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/1112185
   https://bugzilla.suse.com/1114422