Upstream information

CVE-2021-20196 at MITRE

Description

A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.5 3.2
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low High
User Interaction None None
Scope Changed Changed
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High Low
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1181361 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • qemu-tools >= 5.2.0-150300.109.2
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • qemu >= 5.2.0-150300.109.2
  • qemu-arm >= 5.2.0-150300.109.2
  • qemu-audio-alsa >= 5.2.0-150300.109.2
  • qemu-audio-pa >= 5.2.0-150300.109.2
  • qemu-audio-spice >= 5.2.0-150300.109.2
  • qemu-block-curl >= 5.2.0-150300.109.2
  • qemu-block-iscsi >= 5.2.0-150300.109.2
  • qemu-block-rbd >= 5.2.0-150300.109.2
  • qemu-block-ssh >= 5.2.0-150300.109.2
  • qemu-chardev-baum >= 5.2.0-150300.109.2
  • qemu-chardev-spice >= 5.2.0-150300.109.2
  • qemu-guest-agent >= 5.2.0-150300.109.2
  • qemu-hw-display-qxl >= 5.2.0-150300.109.2
  • qemu-hw-display-virtio-gpu >= 5.2.0-150300.109.2
  • qemu-hw-display-virtio-gpu-pci >= 5.2.0-150300.109.2
  • qemu-hw-display-virtio-vga >= 5.2.0-150300.109.2
  • qemu-hw-s390x-virtio-gpu-ccw >= 5.2.0-150300.109.2
  • qemu-hw-usb-redirect >= 5.2.0-150300.109.2
  • qemu-ipxe >= 1.0.0+-150300.109.2
  • qemu-ksm >= 5.2.0-150300.109.2
  • qemu-kvm >= 5.2.0-150300.109.2
  • qemu-lang >= 5.2.0-150300.109.2
  • qemu-ppc >= 5.2.0-150300.109.2
  • qemu-s390x >= 5.2.0-150300.109.2
  • qemu-seabios >= 1.14.0_0_g155821a-150300.109.2
  • qemu-sgabios >= 8-150300.109.2
  • qemu-skiboot >= 5.2.0-150300.109.2
  • qemu-ui-curses >= 5.2.0-150300.109.2
  • qemu-ui-gtk >= 5.2.0-150300.109.2
  • qemu-ui-opengl >= 5.2.0-150300.109.2
  • qemu-ui-spice-app >= 5.2.0-150300.109.2
  • qemu-ui-spice-core >= 5.2.0-150300.109.2
  • qemu-vgabios >= 1.14.0_0_g155821a-150300.109.2
  • qemu-x86 >= 5.2.0-150300.109.2
SUSE MicroOS 5.0
  • qemu >= 4.2.1-11.34.2
  • qemu-arm >= 4.2.1-11.34.2
  • qemu-ipxe >= 1.0.0+-11.34.2
  • qemu-seabios >= 1.12.1+-11.34.2
  • qemu-sgabios >= 8-11.34.2
  • qemu-tools >= 4.2.1-11.34.2
  • qemu-vgabios >= 1.12.1+-11.34.2
  • qemu-x86 >= 4.2.1-11.34.2
SUSE MicroOS 5.1
  • qemu >= 5.2.0-150300.109.2
  • qemu-arm >= 5.2.0-150300.109.2
  • qemu-ipxe >= 1.0.0+-150300.109.2
  • qemu-s390x >= 5.2.0-150300.109.2
  • qemu-seabios >= 1.14.0_0_g155821a-150300.109.2
  • qemu-sgabios >= 8-150300.109.2
  • qemu-tools >= 5.2.0-150300.109.2
  • qemu-vgabios >= 1.14.0_0_g155821a-150300.109.2
  • qemu-x86 >= 5.2.0-150300.109.2


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 qemu Affected
HPE Helion OpenStack 8 xen Not affected
SUSE CaaS Platform 4.0 qemu Affected
SUSE CaaS Platform 4.0 xen Not affected
SUSE CaaS Platform 4.5 qemu Unsupported
SUSE CaaS Platform 4.5 xen Not affected
SUSE Enterprise Storage 5 qemu Unsupported
SUSE Enterprise Storage 5 xen Unsupported
SUSE Enterprise Storage 6 qemu Affected
SUSE Enterprise Storage 6 xen Not affected
SUSE Enterprise Storage 7 qemu In progress
SUSE Enterprise Storage 7 xen Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 qemu Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 xen Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 LTSS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS qemu In progress
SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS qemu In progress
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS xen Not affected
SUSE Linux Enterprise Micro 5.0 qemu In progress
SUSE Linux Enterprise Micro 5.0 xen Not affected
SUSE Linux Enterprise Micro 5.1 qemu In progress
SUSE Linux Enterprise Micro 5.1 xen Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 qemu Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP1 xen Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 qemu In progress
SUSE Linux Enterprise Module for Basesystem 15 SP2 xen Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 qemu In progress
SUSE Linux Enterprise Module for Basesystem 15 SP3 xen Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 qemu Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP4 xen Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 qemu Unsupported
SUSE Linux Enterprise Module for Server Applications 15 SP1 xen Unsupported
SUSE Linux Enterprise Module for Server Applications 15 SP2 qemu In progress
SUSE Linux Enterprise Module for Server Applications 15 SP2 xen Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 qemu In progress
SUSE Linux Enterprise Module for Server Applications 15 SP3 xen Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 qemu Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP4 xen Not affected
SUSE Linux Enterprise Point of Service 11 SP3 kvm Not affected
SUSE Linux Enterprise Point of Service 11 SP3 qemu Not affected
SUSE Linux Enterprise Point of Service 11 SP3 xen Not affected
SUSE Linux Enterprise Point of Service Image Server 12 SP2 qemu Unsupported
SUSE Linux Enterprise Point of Service Image Server 12 SP2 xen Unsupported
SUSE Linux Enterprise Server 11 SP1 kvm Not affected
SUSE Linux Enterprise Server 11 SP1 xen Not affected
SUSE Linux Enterprise Server 11 SP3 kvm Not affected
SUSE Linux Enterprise Server 11 SP3 xen Not affected
SUSE Linux Enterprise Server 11 SP4 kvm Not affected
SUSE Linux Enterprise Server 11 SP4 xen Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kvm Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP2 BCL qemu Affected
SUSE Linux Enterprise Server 12 SP2 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP2 ESPOS qemu Unsupported
SUSE Linux Enterprise Server 12 SP2 ESPOS xen Unsupported
SUSE Linux Enterprise Server 12 SP2 LTSS qemu Unsupported
SUSE Linux Enterprise Server 12 SP2 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP3 BCL qemu Affected
SUSE Linux Enterprise Server 12 SP3 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP3 ESPOS qemu Affected
SUSE Linux Enterprise Server 12 SP3 ESPOS xen Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS qemu Affected
SUSE Linux Enterprise Server 12 SP3 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP4 ESPOS qemu Affected
SUSE Linux Enterprise Server 12 SP4 ESPOS xen Not affected
SUSE Linux Enterprise Server 12 SP4 LTSS qemu Affected
SUSE Linux Enterprise Server 12 SP4 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP5 qemu Affected
SUSE Linux Enterprise Server 12 SP5 xen Not affected
SUSE Linux Enterprise Server 15 ESPOS qemu Affected
SUSE Linux Enterprise Server 15 ESPOS xen Not affected
SUSE Linux Enterprise Server 15 LTSS qemu Affected
SUSE Linux Enterprise Server 15 LTSS xen Not affected
SUSE Linux Enterprise Server 15 SP1 LTSS qemu Affected
SUSE Linux Enterprise Server 15 SP1 LTSS xen Not affected
SUSE Linux Enterprise Server 15 SP2 LTSS qemu In progress
SUSE Linux Enterprise Server 15 SP2 LTSS xen Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 qemu Affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 xen Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 qemu In progress
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 qemu Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xen Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP3 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 qemu In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP2 xen Not affected
SUSE Manager Proxy 4.0 qemu Unsupported
SUSE Manager Proxy 4.0 xen Not affected
SUSE Manager Proxy 4.1 qemu In progress
SUSE Manager Proxy 4.1 xen Not affected
SUSE Manager Retail Branch Server 4.0 qemu Unsupported
SUSE Manager Retail Branch Server 4.0 xen Not affected
SUSE Manager Retail Branch Server 4.1 qemu In progress
SUSE Manager Retail Branch Server 4.1 xen Not affected
SUSE Manager Server 4.0 qemu Unsupported
SUSE Manager Server 4.0 xen Not affected
SUSE Manager Server 4.1 qemu In progress
SUSE Manager Server 4.1 xen Not affected
SUSE OpenStack Cloud 7 qemu Unsupported
SUSE OpenStack Cloud 7 xen Not affected
SUSE OpenStack Cloud 8 qemu Affected
SUSE OpenStack Cloud 8 xen Not affected
SUSE OpenStack Cloud 9 qemu Affected
SUSE OpenStack Cloud 9 xen Not affected
SUSE OpenStack Cloud Crowbar 8 qemu Affected
SUSE OpenStack Cloud Crowbar 8 xen Not affected
SUSE OpenStack Cloud Crowbar 9 qemu Affected
SUSE OpenStack Cloud Crowbar 9 xen Not affected
suse/sles/15.2/virt-launcher:0.38.1
suse/sles/15.3/libguestfs-tools:0.45.0
suse/sles/15.3/virt-launcher:0.45.0
qemuIn progress