SUSE update for qemu

Published: 2021-11-03

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-3713 CVE-2021-3748
CWE-ID	CWE-787 CWE-416
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software Subscribe	SUSE MicroOS 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-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-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-skiboot 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-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-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-s390x-debuginfo Operating systems & Components / Operating system package or component qemu-s390x Operating systems & Components / Operating system package or component qemu-sgabios 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-arm-debuginfo Operating systems & Components / Operating system package or component qemu-arm Operating systems & Components / Operating system package or component qemu-tools-debuginfo Operating systems & Components / Operating system package or component qemu-tools 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 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU63779

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3713

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the UAS (USB Attached SCSI) device emulation of QEMU. A local user can perform a denial of service or escalate privileges on the system.

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE MicroOS: 5.1

SUSE Linux Enterprise Module for Basesystem: 15-SP3

SUSE Linux Enterprise Module for Server Applications: 15-SP3

qemu-hw-s390x-virtio-gpu-ccw-debuginfo: before 5.2.0-106.4

qemu-hw-s390x-virtio-gpu-ccw: before 5.2.0-106.4

qemu-audio-pa-debuginfo: before 5.2.0-106.4

qemu-audio-pa: before 5.2.0-106.4

qemu-audio-alsa-debuginfo: before 5.2.0-106.4

qemu-audio-alsa: before 5.2.0-106.4

qemu-skiboot: before 5.2.0-106.4

qemu-ppc-debuginfo: before 5.2.0-106.4

qemu-ppc: before 5.2.0-106.4

qemu-kvm: before 5.2.0-106.4

qemu-hw-display-virtio-gpu-pci-debuginfo: before 5.2.0-106.4

qemu-hw-display-virtio-gpu-pci: before 5.2.0-106.4

qemu-hw-display-virtio-gpu-debuginfo: before 5.2.0-106.4

qemu-hw-display-virtio-gpu: before 5.2.0-106.4

qemu-ui-spice-core-debuginfo: before 5.2.0-106.4

qemu-ui-spice-core: before 5.2.0-106.4

qemu-ui-spice-app-debuginfo: before 5.2.0-106.4

qemu-ui-spice-app: before 5.2.0-106.4

qemu-ui-opengl-debuginfo: before 5.2.0-106.4

qemu-ui-opengl: before 5.2.0-106.4

qemu-ui-gtk-debuginfo: before 5.2.0-106.4

qemu-ui-gtk: before 5.2.0-106.4

qemu-hw-usb-redirect-debuginfo: before 5.2.0-106.4

qemu-hw-usb-redirect: before 5.2.0-106.4

qemu-hw-display-virtio-vga-debuginfo: before 5.2.0-106.4

qemu-hw-display-virtio-vga: before 5.2.0-106.4

qemu-hw-display-qxl-debuginfo: before 5.2.0-106.4

qemu-hw-display-qxl: before 5.2.0-106.4

qemu-chardev-spice-debuginfo: before 5.2.0-106.4

qemu-chardev-spice: before 5.2.0-106.4

qemu-audio-spice-debuginfo: before 5.2.0-106.4

qemu-audio-spice: before 5.2.0-106.4

qemu-ui-curses-debuginfo: before 5.2.0-106.4

qemu-ui-curses: before 5.2.0-106.4

qemu-lang: before 5.2.0-106.4

qemu-ksm: before 5.2.0-106.4

qemu-guest-agent-debuginfo: before 5.2.0-106.4

qemu-guest-agent: before 5.2.0-106.4

qemu-chardev-baum-debuginfo: before 5.2.0-106.4

qemu-chardev-baum: before 5.2.0-106.4

qemu-block-ssh-debuginfo: before 5.2.0-106.4

qemu-block-ssh: before 5.2.0-106.4

qemu-block-rbd-debuginfo: before 5.2.0-106.4

qemu-block-rbd: before 5.2.0-106.4

qemu-block-iscsi-debuginfo: before 5.2.0-106.4

qemu-block-iscsi: before 5.2.0-106.4

qemu-block-curl-debuginfo: before 5.2.0-106.4

qemu-block-curl: before 5.2.0-106.4

qemu-s390x-debuginfo: before 5.2.0-106.4

qemu-s390x: before 5.2.0-106.4

qemu-sgabios: before 8-106.4

qemu-x86-debuginfo: before 5.2.0-106.4

qemu-x86: before 5.2.0-106.4

qemu-arm-debuginfo: before 5.2.0-106.4

qemu-arm: before 5.2.0-106.4

qemu-tools-debuginfo: before 5.2.0-106.4

qemu-tools: before 5.2.0-106.4

qemu-debugsource: before 5.2.0-106.4

qemu-debuginfo: before 5.2.0-106.4

qemu: before 5.2.0-106.4

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213605-1/

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.

2) Use-after-free

EUVDB-ID: #VU58813

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3748

CWE-ID: CWE-416 - Use After Free