Security update for qemu

SUSE Security Update: Security update for qemu
Announcement ID: SUSE-SU-2018:3927-1
Rating: important
References: #1106222 #1107489 #1110910 #1111006 #1111010 #1111013 #1112499 #1114422 #1114529
Cross-References: CVE-2018-10839 CVE-2018-15746 CVE-2018-16847 CVE-2018-17958 CVE-2018-17962 CVE-2018-17963 CVE-2018-18849
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • SUSE Linux Enterprise Module for Basesystem 15

An update that solves 7 vulnerabilities and has two fixes 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-2018-16847: Fixed an OOB heap buffer r/w access issue that was found in the NVM Express Controller emulation in QEMU. It could occur in nvme_cmb_ops routines in nvme device. A guest user/process could use this flaw to crash the QEMU process resulting in DoS or potentially run arbitrary code with privileges of the QEMU process (bsc#1114529).
  • 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:
  • Fix slowness in arm32 emulation (bsc#1112499).
  • In order to improve spectre mitigation for s390x, add a new feature in the QEMU cpu model to provide the etoken cpu feature for guests (bsc#1107489).

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-15-2018-2794=1
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2018-2794=1
  • SUSE Linux Enterprise Module for Basesystem 15:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2794=1

Package List:

  • SUSE Linux Enterprise Module for Server Applications 15 (aarch64 ppc64le s390x x86_64):
    • qemu-2.11.2-9.12.2
    • qemu-block-curl-2.11.2-9.12.2
    • qemu-block-curl-debuginfo-2.11.2-9.12.2
    • qemu-block-iscsi-2.11.2-9.12.2
    • qemu-block-iscsi-debuginfo-2.11.2-9.12.2
    • qemu-block-rbd-2.11.2-9.12.2
    • qemu-block-rbd-debuginfo-2.11.2-9.12.2
    • qemu-block-ssh-2.11.2-9.12.2
    • qemu-block-ssh-debuginfo-2.11.2-9.12.2
    • qemu-debuginfo-2.11.2-9.12.2
    • qemu-debugsource-2.11.2-9.12.2
    • qemu-guest-agent-2.11.2-9.12.2
    • qemu-guest-agent-debuginfo-2.11.2-9.12.2
    • qemu-lang-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (s390x x86_64):
    • qemu-kvm-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (aarch64):
    • qemu-arm-2.11.2-9.12.2
    • qemu-arm-debuginfo-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (ppc64le):
    • qemu-ppc-2.11.2-9.12.2
    • qemu-ppc-debuginfo-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (x86_64):
    • qemu-x86-2.11.2-9.12.2
    • qemu-x86-debuginfo-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (noarch):
    • qemu-ipxe-1.0.0+-9.12.2
    • qemu-seabios-1.11.0-9.12.2
    • qemu-sgabios-8-9.12.2
    • qemu-vgabios-1.11.0-9.12.2
  • SUSE Linux Enterprise Module for Server Applications 15 (s390x):
    • qemu-s390-2.11.2-9.12.2
    • qemu-s390-debuginfo-2.11.2-9.12.2
  • SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (aarch64 ppc64le s390x x86_64):
    • qemu-block-dmg-2.11.2-9.12.2
    • qemu-block-dmg-debuginfo-2.11.2-9.12.2
    • qemu-debuginfo-2.11.2-9.12.2
    • qemu-debugsource-2.11.2-9.12.2
    • qemu-extra-2.11.2-9.12.2
    • qemu-extra-debuginfo-2.11.2-9.12.2
    • qemu-linux-user-2.11.2-9.12.1
    • qemu-linux-user-debuginfo-2.11.2-9.12.1
    • qemu-linux-user-debugsource-2.11.2-9.12.1
  • SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):
    • qemu-debuginfo-2.11.2-9.12.2
    • qemu-debugsource-2.11.2-9.12.2
    • qemu-tools-2.11.2-9.12.2
    • qemu-tools-debuginfo-2.11.2-9.12.2

References: