Security update for qemu

SUSE Security Update: Security update for qemu
Announcement ID: SUSE-SU-2018:3912-1
Rating: moderate
References: #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-LTSS

An update that fixes 6 vulnerabilities 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).

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-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-2018-2781=1

Package List:

  • SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
    • qemu-2.0.2-48.46.2
    • qemu-block-curl-2.0.2-48.46.2
    • qemu-block-curl-debuginfo-2.0.2-48.46.2
    • qemu-debugsource-2.0.2-48.46.2
    • qemu-guest-agent-2.0.2-48.46.2
    • qemu-guest-agent-debuginfo-2.0.2-48.46.2
    • qemu-lang-2.0.2-48.46.2
    • qemu-tools-2.0.2-48.46.2
    • qemu-tools-debuginfo-2.0.2-48.46.2
  • SUSE Linux Enterprise Server 12-LTSS (s390x x86_64):
    • qemu-kvm-2.0.2-48.46.2
  • SUSE Linux Enterprise Server 12-LTSS (ppc64le):
    • qemu-ppc-2.0.2-48.46.2
    • qemu-ppc-debuginfo-2.0.2-48.46.2
  • SUSE Linux Enterprise Server 12-LTSS (x86_64):
    • qemu-block-rbd-2.0.2-48.46.2
    • qemu-block-rbd-debuginfo-2.0.2-48.46.2
    • qemu-x86-2.0.2-48.46.2
    • qemu-x86-debuginfo-2.0.2-48.46.2
  • SUSE Linux Enterprise Server 12-LTSS (noarch):
    • qemu-ipxe-1.0.0-48.46.2
    • qemu-seabios-1.7.4-48.46.2
    • qemu-sgabios-8-48.46.2
    • qemu-vgabios-1.7.4-48.46.2
  • SUSE Linux Enterprise Server 12-LTSS (s390x):
    • qemu-s390-2.0.2-48.46.2
    • qemu-s390-debuginfo-2.0.2-48.46.2

References: