Upstream information

CVE-2021-20263 at MITRE

Description

A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest.

SUSE information

Overall state of this security issue: Analysis

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:P/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 3.3 3.3
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact Low Low
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1183373 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • qemu-tools >= 5.2.0-17.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP3-2021-1942
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3
  • qemu-arm >= 5.2.0-17.1
  • qemu-audio-alsa >= 5.2.0-17.1
  • qemu-audio-pa >= 5.2.0-17.1
  • qemu-audio-spice >= 5.2.0-17.1
  • qemu-block-dmg >= 5.2.0-17.1
  • qemu-block-gluster >= 5.2.0-17.1
  • qemu-block-nfs >= 5.2.0-17.1
  • qemu-chardev-spice >= 5.2.0-17.1
  • qemu-extra >= 5.2.0-17.1
  • qemu-hw-display-qxl >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu-pci >= 5.2.0-17.1
  • qemu-hw-display-virtio-vga >= 5.2.0-17.1
  • qemu-hw-s390x-virtio-gpu-ccw >= 5.2.0-17.1
  • qemu-hw-usb-redirect >= 5.2.0-17.1
  • qemu-hw-usb-smartcard >= 5.2.0-17.1
  • qemu-ivshmem-tools >= 5.2.0-17.1
  • qemu-linux-user >= 5.2.0-17.1
  • qemu-microvm >= 5.2.0-17.1
  • qemu-ppc >= 5.2.0-17.1
  • qemu-s390x >= 5.2.0-17.1
  • qemu-seabios >= 1.14.0_0_g155821a-17.1
  • qemu-sgabios >= 8-17.1
  • qemu-skiboot >= 5.2.0-17.1
  • qemu-testsuite >= 5.2.0-17.2
  • qemu-ui-gtk >= 5.2.0-17.1
  • qemu-ui-opengl >= 5.2.0-17.1
  • qemu-ui-spice-app >= 5.2.0-17.1
  • qemu-ui-spice-core >= 5.2.0-17.1
  • qemu-vgabios >= 1.14.0_0_g155821a-17.1
  • qemu-vhost-user-gpu >= 5.2.0-17.1
  • qemu-x86 >= 5.2.0-17.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP3-2021-1942
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • qemu >= 5.2.0-17.1
  • qemu-arm >= 5.2.0-17.1
  • qemu-audio-alsa >= 5.2.0-17.1
  • qemu-audio-pa >= 5.2.0-17.1
  • qemu-audio-spice >= 5.2.0-17.1
  • qemu-block-curl >= 5.2.0-17.1
  • qemu-block-iscsi >= 5.2.0-17.1
  • qemu-block-rbd >= 5.2.0-17.1
  • qemu-block-ssh >= 5.2.0-17.1
  • qemu-chardev-baum >= 5.2.0-17.1
  • qemu-chardev-spice >= 5.2.0-17.1
  • qemu-guest-agent >= 5.2.0-17.1
  • qemu-hw-display-qxl >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu-pci >= 5.2.0-17.1
  • qemu-hw-display-virtio-vga >= 5.2.0-17.1
  • qemu-hw-s390x-virtio-gpu-ccw >= 5.2.0-17.1
  • qemu-hw-usb-redirect >= 5.2.0-17.1
  • qemu-ipxe >= 1.0.0+-17.1
  • qemu-ksm >= 5.2.0-17.1
  • qemu-kvm >= 5.2.0-17.1
  • qemu-lang >= 5.2.0-17.1
  • qemu-ppc >= 5.2.0-17.1
  • qemu-s390x >= 5.2.0-17.1
  • qemu-seabios >= 1.14.0_0_g155821a-17.1
  • qemu-sgabios >= 8-17.1
  • qemu-skiboot >= 5.2.0-17.1
  • qemu-ui-curses >= 5.2.0-17.1
  • qemu-ui-gtk >= 5.2.0-17.1
  • qemu-ui-opengl >= 5.2.0-17.1
  • qemu-ui-spice-app >= 5.2.0-17.1
  • qemu-ui-spice-core >= 5.2.0-17.1
  • qemu-vgabios >= 1.14.0_0_g155821a-17.1
  • qemu-x86 >= 5.2.0-17.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP3-2021-1942
openSUSE Leap 15.3
  • qemu >= 5.2.0-17.1
  • qemu-arm >= 5.2.0-17.1
  • qemu-audio-alsa >= 5.2.0-17.1
  • qemu-audio-pa >= 5.2.0-17.1
  • qemu-audio-spice >= 5.2.0-17.1
  • qemu-block-curl >= 5.2.0-17.1
  • qemu-block-dmg >= 5.2.0-17.1
  • qemu-block-gluster >= 5.2.0-17.1
  • qemu-block-iscsi >= 5.2.0-17.1
  • qemu-block-nfs >= 5.2.0-17.1
  • qemu-block-rbd >= 5.2.0-17.1
  • qemu-block-ssh >= 5.2.0-17.1
  • qemu-chardev-baum >= 5.2.0-17.1
  • qemu-chardev-spice >= 5.2.0-17.1
  • qemu-extra >= 5.2.0-17.1
  • qemu-guest-agent >= 5.2.0-17.1
  • qemu-hw-display-qxl >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu >= 5.2.0-17.1
  • qemu-hw-display-virtio-gpu-pci >= 5.2.0-17.1
  • qemu-hw-display-virtio-vga >= 5.2.0-17.1
  • qemu-hw-s390x-virtio-gpu-ccw >= 5.2.0-17.1
  • qemu-hw-usb-redirect >= 5.2.0-17.1
  • qemu-hw-usb-smartcard >= 5.2.0-17.1
  • qemu-ipxe >= 1.0.0+-17.1
  • qemu-ivshmem-tools >= 5.2.0-17.1
  • qemu-ksm >= 5.2.0-17.1
  • qemu-kvm >= 5.2.0-17.1
  • qemu-lang >= 5.2.0-17.1
  • qemu-microvm >= 5.2.0-17.1
  • qemu-ppc >= 5.2.0-17.1
  • qemu-s390x >= 5.2.0-17.1
  • qemu-seabios >= 1.14.0_0_g155821a-17.1
  • qemu-sgabios >= 8-17.1
  • qemu-skiboot >= 5.2.0-17.1
  • qemu-tools >= 5.2.0-17.1
  • qemu-ui-curses >= 5.2.0-17.1
  • qemu-ui-gtk >= 5.2.0-17.1
  • qemu-ui-opengl >= 5.2.0-17.1
  • qemu-ui-spice-app >= 5.2.0-17.1
  • qemu-ui-spice-core >= 5.2.0-17.1
  • qemu-vgabios >= 1.14.0_0_g155821a-17.1
  • qemu-vhost-user-gpu >= 5.2.0-17.1
  • qemu-x86 >= 5.2.0-17.1
Patchnames:
openSUSE-SLE-15.3-2021-1942


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 Analysis
SUSE CaaS Platform 4.0 qemu Analysis
SUSE Enterprise Storage 6 qemu Analysis
SUSE Linux Enterprise High Performance Computing 12 SP5 qemu Analysis
SUSE Linux Enterprise High Performance Computing 15 LTSS qemu Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS qemu Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP2 qemu Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP3 qemu Released
SUSE Linux Enterprise Module for Server Applications 15 SP2 qemu Analysis
SUSE Linux Enterprise Module for Server Applications 15 SP3 qemu Released
SUSE Linux Enterprise Point of Service 11 SP3 kvm Analysis
SUSE Linux Enterprise Point of Service 11 SP3 qemu Analysis
SUSE Linux Enterprise Point of Service Image Server 12 qemu Unsupported
SUSE Linux Enterprise Server 11 SP4 LTSS kvm Analysis
SUSE Linux Enterprise Server 12 SP2 BCL qemu Analysis
SUSE Linux Enterprise Server 12 SP2 ESPOS qemu Unsupported
SUSE Linux Enterprise Server 12 SP2 LTSS qemu Analysis
SUSE Linux Enterprise Server 12 SP3 BCL qemu Analysis
SUSE Linux Enterprise Server 12 SP3 ESPOS qemu Analysis
SUSE Linux Enterprise Server 12 SP3 LTSS qemu Analysis
SUSE Linux Enterprise Server 12 SP4 ESPOS qemu Analysis
SUSE Linux Enterprise Server 12 SP4 LTSS qemu Analysis
SUSE Linux Enterprise Server 12 SP5 qemu Analysis
SUSE Linux Enterprise Server 15 LTSS qemu Analysis
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux qemu Analysis
SUSE Linux Enterprise Server 15 SP1 LTSS qemu Analysis
SUSE Linux Enterprise Server ESPOS 15 qemu Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 qemu Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP3 qemu Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 qemu Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP5 qemu Analysis
SUSE Linux Enterprise Server for SAP Applications 15 qemu Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP1 qemu Analysis
SUSE Manager Proxy 4.0 qemu Analysis
SUSE Manager Retail Branch Server 4.0 qemu Analysis
SUSE Manager Server 4.0 qemu Analysis
SUSE OpenStack Cloud 7 qemu Analysis
SUSE OpenStack Cloud 8 qemu Analysis
SUSE OpenStack Cloud 9 qemu Analysis
SUSE OpenStack Cloud Crowbar 8 qemu Analysis
SUSE OpenStack Cloud Crowbar 9 qemu Analysis