SUSE update for qemu

1) Out-of-bounds read

EUVDB-ID: #VU28283

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13253

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the SD Memory Card emulator while performing block write commands via sdhci_write() in QEMU. A remote user of guest operating system can trigger out-of-bounds read error and crash the QEMU process. 

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Realtime Extension: 15-SP2

qemu-ui-spice-app-debuginfo: before 4.2.1-11.34.2

qemu-ui-spice-app: before 4.2.1-11.34.2

qemu-ui-gtk-debuginfo: before 4.2.1-11.34.2

qemu-ui-gtk: before 4.2.1-11.34.2

qemu-ui-curses-debuginfo: before 4.2.1-11.34.2

qemu-ui-curses: before 4.2.1-11.34.2

qemu-lang: before 4.2.1-11.34.2

qemu-kvm: before 4.2.1-11.34.2

qemu-guest-agent-debuginfo: before 4.2.1-11.34.2

qemu-guest-agent: before 4.2.1-11.34.2

qemu-block-ssh-debuginfo: before 4.2.1-11.34.2

qemu-block-ssh: before 4.2.1-11.34.2

qemu-block-rbd-debuginfo: before 4.2.1-11.34.2

qemu-block-rbd: before 4.2.1-11.34.2

qemu-block-iscsi-debuginfo: before 4.2.1-11.34.2

qemu-block-iscsi: before 4.2.1-11.34.2

qemu-block-curl-debuginfo: before 4.2.1-11.34.2

qemu-block-curl: before 4.2.1-11.34.2

qemu-audio-pa-debuginfo: before 4.2.1-11.34.2

qemu-audio-pa: before 4.2.1-11.34.2

qemu-audio-alsa-debuginfo: before 4.2.1-11.34.2

qemu-audio-alsa: before 4.2.1-11.34.2

qemu-microvm: before 4.2.1-11.34.2

qemu-x86-debuginfo: before 4.2.1-11.34.2

qemu-x86: before 4.2.1-11.34.2

qemu-vgabios: before 1.12.1+-11.34.2

qemu-sgabios: before 8-11.34.2

qemu-seabios: before 1.12.1+-11.34.2

qemu-ipxe: before 1.0.0+-11.34.2

qemu-tools-debuginfo: before 4.2.1-11.34.2

qemu-tools: before 4.2.1-11.34.2

qemu-debugsource: before 4.2.1-11.34.2

qemu-debuginfo: before 4.2.1-11.34.2

qemu: before 4.2.1-11.34.2

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220210-2/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) NULL pointer dereference

EUVDB-ID: #VU63775

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20196

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the floppy disk emulator of QEMU. A privileged guest can trigger a NULL pointer dereference error and cause a denial of service. 

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Realtime Extension: 15-SP2

qemu-ui-spice-app-debuginfo: before 4.2.1-11.34.2

qemu-ui-spice-app: before 4.2.1-11.34.2

qemu-ui-gtk-debuginfo: before 4.2.1-11.34.2

qemu-ui-gtk: before 4.2.1-11.34.2

qemu-ui-curses-debuginfo: before 4.2.1-11.34.2

qemu-ui-curses: before 4.2.1-11.34.2

qemu-lang: before 4.2.1-11.34.2

qemu-kvm: before 4.2.1-11.34.2

qemu-guest-agent-debuginfo: before 4.2.1-11.34.2

qemu-guest-agent: before 4.2.1-11.34.2

qemu-block-ssh-debuginfo: before 4.2.1-11.34.2

qemu-block-ssh: before 4.2.1-11.34.2

qemu-block-rbd-debuginfo: before 4.2.1-11.34.2

qemu-block-rbd: before 4.2.1-11.34.2

qemu-block-iscsi-debuginfo: before 4.2.1-11.34.2

qemu-block-iscsi: before 4.2.1-11.34.2

qemu-block-curl-debuginfo: before 4.2.1-11.34.2

qemu-block-curl: before 4.2.1-11.34.2

qemu-audio-pa-debuginfo: before 4.2.1-11.34.2

qemu-audio-pa: before 4.2.1-11.34.2

qemu-audio-alsa-debuginfo: before 4.2.1-11.34.2

qemu-audio-alsa: before 4.2.1-11.34.2

qemu-microvm: before 4.2.1-11.34.2

qemu-x86-debuginfo: before 4.2.1-11.34.2

qemu-x86: before 4.2.1-11.34.2

qemu-vgabios: before 1.12.1+-11.34.2

qemu-sgabios: before 8-11.34.2

qemu-seabios: before 1.12.1+-11.34.2

qemu-ipxe: before 1.0.0+-11.34.2

qemu-tools-debuginfo: before 4.2.1-11.34.2

qemu-tools: before 4.2.1-11.34.2

qemu-debugsource: before 4.2.1-11.34.2

qemu-debuginfo: before 4.2.1-11.34.2

qemu: before 4.2.1-11.34.2

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220210-2/

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.