SUSE update for qemu

Published: 2022-03-22

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-3930 CVE-2022-0358
CWE-ID	CWE-193 CWE-276
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Desktop Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system SUSE Linux Enterprise Module for Server Applications Operating systems & Components / Operating system qemu-tools-debuginfo Operating systems & Components / Operating system package or component qemu-tools Operating systems & Components / Operating system package or component qemu-s390x-debuginfo Operating systems & Components / Operating system package or component qemu-s390x Operating systems & Components / Operating system package or component qemu-hw-s390x-virtio-gpu-ccw-debuginfo Operating systems & Components / Operating system package or component qemu-hw-s390x-virtio-gpu-ccw Operating systems & Components / Operating system package or component qemu-x86-debuginfo Operating systems & Components / Operating system package or component qemu-x86 Operating systems & Components / Operating system package or component qemu-audio-pa-debuginfo Operating systems & Components / Operating system package or component qemu-audio-pa Operating systems & Components / Operating system package or component qemu-audio-alsa-debuginfo Operating systems & Components / Operating system package or component qemu-audio-alsa Operating systems & Components / Operating system package or component qemu-vgabios Operating systems & Components / Operating system package or component qemu-skiboot Operating systems & Components / Operating system package or component qemu-sgabios Operating systems & Components / Operating system package or component qemu-seabios Operating systems & Components / Operating system package or component qemu-ipxe Operating systems & Components / Operating system package or component qemu-SLOF Operating systems & Components / Operating system package or component qemu-ppc-debuginfo Operating systems & Components / Operating system package or component qemu-ppc Operating systems & Components / Operating system package or component qemu-arm-debuginfo Operating systems & Components / Operating system package or component qemu-arm Operating systems & Components / Operating system package or component qemu-kvm Operating systems & Components / Operating system package or component qemu-hw-display-virtio-gpu-pci-debuginfo Operating systems & Components / Operating system package or component qemu-hw-display-virtio-gpu-pci Operating systems & Components / Operating system package or component qemu-hw-display-virtio-gpu-debuginfo Operating systems & Components / Operating system package or component qemu-hw-display-virtio-gpu Operating systems & Components / Operating system package or component qemu-ui-spice-core-debuginfo Operating systems & Components / Operating system package or component qemu-ui-spice-core Operating systems & Components / Operating system package or component qemu-ui-spice-app-debuginfo Operating systems & Components / Operating system package or component qemu-ui-spice-app Operating systems & Components / Operating system package or component qemu-ui-opengl-debuginfo Operating systems & Components / Operating system package or component qemu-ui-opengl Operating systems & Components / Operating system package or component qemu-ui-gtk-debuginfo Operating systems & Components / Operating system package or component qemu-ui-gtk Operating systems & Components / Operating system package or component qemu-hw-usb-redirect-debuginfo Operating systems & Components / Operating system package or component qemu-hw-usb-redirect Operating systems & Components / Operating system package or component qemu-hw-display-virtio-vga-debuginfo Operating systems & Components / Operating system package or component qemu-hw-display-virtio-vga Operating systems & Components / Operating system package or component qemu-hw-display-qxl-debuginfo Operating systems & Components / Operating system package or component qemu-hw-display-qxl Operating systems & Components / Operating system package or component qemu-chardev-spice-debuginfo Operating systems & Components / Operating system package or component qemu-chardev-spice Operating systems & Components / Operating system package or component qemu-audio-spice-debuginfo Operating systems & Components / Operating system package or component qemu-audio-spice Operating systems & Components / Operating system package or component qemu-ui-curses-debuginfo Operating systems & Components / Operating system package or component qemu-ui-curses Operating systems & Components / Operating system package or component qemu-lang Operating systems & Components / Operating system package or component qemu-ksm Operating systems & Components / Operating system package or component qemu-guest-agent-debuginfo Operating systems & Components / Operating system package or component qemu-guest-agent Operating systems & Components / Operating system package or component qemu-debugsource Operating systems & Components / Operating system package or component qemu-debuginfo Operating systems & Components / Operating system package or component qemu-chardev-baum-debuginfo Operating systems & Components / Operating system package or component qemu-chardev-baum Operating systems & Components / Operating system package or component qemu-block-ssh-debuginfo Operating systems & Components / Operating system package or component qemu-block-ssh Operating systems & Components / Operating system package or component qemu-block-rbd-debuginfo Operating systems & Components / Operating system package or component qemu-block-rbd Operating systems & Components / Operating system package or component qemu-block-iscsi-debuginfo Operating systems & Components / Operating system package or component qemu-block-iscsi Operating systems & Components / Operating system package or component qemu-block-curl-debuginfo Operating systems & Components / Operating system package or component qemu-block-curl Operating systems & Components / Operating system package or component qemu Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Off-by-one

EUVDB-ID: #VU58812

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3930

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to an off-by-one error in the SCSI device emulation in QEMU. A remote user on the guest OS can can trigger an off-by-one error while processing MODE SELECT commands in mode_sense_page() if the 'page' argument is set to MODE_PAGE_ALLS (0x3f). Successful exploitation of the vulnerability may result in QEMU crash.

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Desktop: 15-SP3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Micro: 5.1

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

SUSE Linux Enterprise Module for Server Applications: 15-SP3

qemu-tools-debuginfo: before 5.2.0-150300.112.4

qemu-tools: before 5.2.0-150300.112.4

qemu-s390x-debuginfo: before 5.2.0-150300.112.4

qemu-s390x: before 5.2.0-150300.112.4

qemu-hw-s390x-virtio-gpu-ccw-debuginfo: before 5.2.0-150300.112.4

qemu-hw-s390x-virtio-gpu-ccw: before 5.2.0-150300.112.4

qemu-x86-debuginfo: before 5.2.0-150300.112.4

qemu-x86: before 5.2.0-150300.112.4

qemu-audio-pa-debuginfo: before 5.2.0-150300.112.4

qemu-audio-pa: before 5.2.0-150300.112.4

qemu-audio-alsa-debuginfo: before 5.2.0-150300.112.4

qemu-audio-alsa: before 5.2.0-150300.112.4

qemu-vgabios: before 1.14.0_0_g155821a-150300.112.4

qemu-skiboot: before 5.2.0-150300.112.4

qemu-sgabios: before 8-150300.112.4

qemu-seabios: before 1.14.0_0_g155821a-150300.112.4

qemu-ipxe: before 1.0.0+-150300.112.4

qemu-SLOF: before 5.2.0-150300.112.4

qemu-ppc-debuginfo: before 5.2.0-150300.112.4

qemu-ppc: before 5.2.0-150300.112.4

qemu-arm-debuginfo: before 5.2.0-150300.112.4

qemu-arm: before 5.2.0-150300.112.4

qemu-kvm: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-pci-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-pci: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu: before 5.2.0-150300.112.4

qemu-ui-spice-core-debuginfo: before 5.2.0-150300.112.4

qemu-ui-spice-core: before 5.2.0-150300.112.4

qemu-ui-spice-app-debuginfo: before 5.2.0-150300.112.4

qemu-ui-spice-app: before 5.2.0-150300.112.4

qemu-ui-opengl-debuginfo: before 5.2.0-150300.112.4

qemu-ui-opengl: before 5.2.0-150300.112.4

qemu-ui-gtk-debuginfo: before 5.2.0-150300.112.4

qemu-ui-gtk: before 5.2.0-150300.112.4

qemu-hw-usb-redirect-debuginfo: before 5.2.0-150300.112.4

qemu-hw-usb-redirect: before 5.2.0-150300.112.4

qemu-hw-display-virtio-vga-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-vga: before 5.2.0-150300.112.4

qemu-hw-display-qxl-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-qxl: before 5.2.0-150300.112.4

qemu-chardev-spice-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-spice: before 5.2.0-150300.112.4

qemu-audio-spice-debuginfo: before 5.2.0-150300.112.4

qemu-audio-spice: before 5.2.0-150300.112.4

qemu-ui-curses-debuginfo: before 5.2.0-150300.112.4

qemu-ui-curses: before 5.2.0-150300.112.4

qemu-lang: before 5.2.0-150300.112.4

qemu-ksm: before 5.2.0-150300.112.4

qemu-guest-agent-debuginfo: before 5.2.0-150300.112.4

qemu-guest-agent: before 5.2.0-150300.112.4

qemu-debugsource: before 5.2.0-150300.112.4

qemu-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-baum-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-baum: before 5.2.0-150300.112.4

qemu-block-ssh-debuginfo: before 5.2.0-150300.112.4

qemu-block-ssh: before 5.2.0-150300.112.4

qemu-block-rbd-debuginfo: before 5.2.0-150300.112.4

qemu-block-rbd: before 5.2.0-150300.112.4

qemu-block-iscsi-debuginfo: before 5.2.0-150300.112.4

qemu-block-iscsi: before 5.2.0-150300.112.4

qemu-block-curl-debuginfo: before 5.2.0-150300.112.4

qemu-block-curl: before 5.2.0-150300.112.4

qemu: before 5.2.0-150300.112.4

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220930-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect default permissions

EUVDB-ID: #VU61492

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0358

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect QEMU virtio-fs shared file system daemon (virtiofsd) implementation. An attacker on the guest OS can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This can lead to privilege escalation within the guest OS.

The vulnerability exists due to incomplete fox for #VU13631 (CVE-2018-13405).

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Desktop: 15-SP3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Micro: 5.1

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

SUSE Linux Enterprise Module for Server Applications: 15-SP3

qemu-tools-debuginfo: before 5.2.0-150300.112.4

qemu-tools: before 5.2.0-150300.112.4

qemu-s390x-debuginfo: before 5.2.0-150300.112.4

qemu-s390x: before 5.2.0-150300.112.4

qemu-hw-s390x-virtio-gpu-ccw-debuginfo: before 5.2.0-150300.112.4

qemu-hw-s390x-virtio-gpu-ccw: before 5.2.0-150300.112.4

qemu-x86-debuginfo: before 5.2.0-150300.112.4

qemu-x86: before 5.2.0-150300.112.4

qemu-audio-pa-debuginfo: before 5.2.0-150300.112.4

qemu-audio-pa: before 5.2.0-150300.112.4

qemu-audio-alsa-debuginfo: before 5.2.0-150300.112.4

qemu-audio-alsa: before 5.2.0-150300.112.4

qemu-vgabios: before 1.14.0_0_g155821a-150300.112.4

qemu-skiboot: before 5.2.0-150300.112.4

qemu-sgabios: before 8-150300.112.4

qemu-seabios: before 1.14.0_0_g155821a-150300.112.4

qemu-ipxe: before 1.0.0+-150300.112.4

qemu-SLOF: before 5.2.0-150300.112.4

qemu-ppc-debuginfo: before 5.2.0-150300.112.4

qemu-ppc: before 5.2.0-150300.112.4

qemu-arm-debuginfo: before 5.2.0-150300.112.4

qemu-arm: before 5.2.0-150300.112.4

qemu-kvm: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-pci-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-pci: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-gpu: before 5.2.0-150300.112.4

qemu-ui-spice-core-debuginfo: before 5.2.0-150300.112.4

qemu-ui-spice-core: before 5.2.0-150300.112.4

qemu-ui-spice-app-debuginfo: before 5.2.0-150300.112.4

qemu-ui-spice-app: before 5.2.0-150300.112.4

qemu-ui-opengl-debuginfo: before 5.2.0-150300.112.4

qemu-ui-opengl: before 5.2.0-150300.112.4

qemu-ui-gtk-debuginfo: before 5.2.0-150300.112.4

qemu-ui-gtk: before 5.2.0-150300.112.4

qemu-hw-usb-redirect-debuginfo: before 5.2.0-150300.112.4

qemu-hw-usb-redirect: before 5.2.0-150300.112.4

qemu-hw-display-virtio-vga-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-virtio-vga: before 5.2.0-150300.112.4

qemu-hw-display-qxl-debuginfo: before 5.2.0-150300.112.4

qemu-hw-display-qxl: before 5.2.0-150300.112.4

qemu-chardev-spice-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-spice: before 5.2.0-150300.112.4

qemu-audio-spice-debuginfo: before 5.2.0-150300.112.4

qemu-audio-spice: before 5.2.0-150300.112.4

qemu-ui-curses-debuginfo: before 5.2.0-150300.112.4

qemu-ui-curses: before 5.2.0-150300.112.4

qemu-lang: before 5.2.0-150300.112.4

qemu-ksm: before 5.2.0-150300.112.4

qemu-guest-agent-debuginfo: before 5.2.0-150300.112.4

qemu-guest-agent: before 5.2.0-150300.112.4

qemu-debugsource: before 5.2.0-150300.112.4

qemu-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-baum-debuginfo: before 5.2.0-150300.112.4

qemu-chardev-baum: before 5.2.0-150300.112.4

qemu-block-ssh-debuginfo: before 5.2.0-150300.112.4

qemu-block-ssh: before 5.2.0-150300.112.4

qemu-block-rbd-debuginfo: before 5.2.0-150300.112.4

qemu-block-rbd: before 5.2.0-150300.112.4

qemu-block-iscsi-debuginfo: before 5.2.0-150300.112.4

qemu-block-iscsi: before 5.2.0-150300.112.4

qemu-block-curl-debuginfo: before 5.2.0-150300.112.4

qemu-block-curl: before 5.2.0-150300.112.4

qemu: before 5.2.0-150300.112.4

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220930-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.