SUSE update for qemu

1) Heap-based buffer overflow

EUVDB-ID: #VU64569

Risk: Medium

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

CVE-ID: CVE-2021-3507

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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 error in the fdctrl_transfer_handler() function in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A remote privileged user on the guest OS can trigger a heap-based buffer overflow and crash the QEMU process on the host OS.

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP2

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15: SP2

SUSE Enterprise Storage: 7.1

openSUSE Leap: 15.4

qemu-ppc: before 4.2.1-150200.72.2

qemu-ppc-debuginfo: before 4.2.1-150200.72.2

qemu-ui-curses-debuginfo: before 4.2.1-150200.72.2

qemu-ui-curses: before 4.2.1-150200.72.2

qemu-ui-gtk: before 4.2.1-150200.72.2

qemu-audio-pa-debuginfo: before 4.2.1-150200.72.2

qemu-x86: before 4.2.1-150200.72.2

qemu-ui-gtk-debuginfo: before 4.2.1-150200.72.2

qemu-audio-alsa: before 4.2.1-150200.72.2

qemu-kvm: before 4.2.1-150200.72.2

qemu-x86-debuginfo: before 4.2.1-150200.72.2

qemu-audio-alsa-debuginfo: before 4.2.1-150200.72.2

qemu-audio-pa: before 4.2.1-150200.72.2

qemu-ipxe: before 1.0.0+-150200.72.2

qemu-seabios: before 1.12.1+-150200.72.2

qemu-sgabios: before 8-150200.72.2

qemu-microvm: before 4.2.1-150200.72.2

qemu-vgabios: before 1.12.1+-150200.72.2

qemu-arm: before 4.2.1-150200.72.2

qemu-arm-debuginfo: before 4.2.1-150200.72.2

qemu-block-curl: before 4.2.1-150200.72.2

qemu-block-ssh: before 4.2.1-150200.72.2

qemu-lang: before 4.2.1-150200.72.2

qemu-guest-agent-debuginfo: before 4.2.1-150200.72.2

qemu-block-iscsi: before 4.2.1-150200.72.2

qemu-guest-agent: before 4.2.1-150200.72.2

qemu-ui-spice-app: before 4.2.1-150200.72.2

qemu-debuginfo: before 4.2.1-150200.72.2

qemu: before 4.2.1-150200.72.2

qemu-debugsource: before 4.2.1-150200.72.2

qemu-block-curl-debuginfo: before 4.2.1-150200.72.2

qemu-ui-spice-app-debuginfo: before 4.2.1-150200.72.2

qemu-tools: before 4.2.1-150200.72.2

qemu-block-ssh-debuginfo: before 4.2.1-150200.72.2

qemu-block-rbd-debuginfo: before 4.2.1-150200.72.2

qemu-block-iscsi-debuginfo: before 4.2.1-150200.72.2

qemu-tools-debuginfo: before 4.2.1-150200.72.2

qemu-block-rbd: before 4.2.1-150200.72.2

qemu-s390-debuginfo: before 4.2.1-150200.72.2

qemu-s390: before 4.2.1-150200.72.2

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230878-1/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Out-of-bounds read

EUVDB-ID: #VU71136

Risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4144

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the qxl_phys2virt() function in the QXL display device emulation in QEMU. A malicious guest user can trigger an out-of-bounds read error and crash the QEMU process on the host

Mitigation

Update the affected package qemu to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP2

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15: SP2

SUSE Enterprise Storage: 7.1

openSUSE Leap: 15.4

qemu-ppc: before 4.2.1-150200.72.2

qemu-ppc-debuginfo: before 4.2.1-150200.72.2

qemu-ui-curses-debuginfo: before 4.2.1-150200.72.2

qemu-ui-curses: before 4.2.1-150200.72.2

qemu-ui-gtk: before 4.2.1-150200.72.2

qemu-audio-pa-debuginfo: before 4.2.1-150200.72.2

qemu-x86: before 4.2.1-150200.72.2

qemu-ui-gtk-debuginfo: before 4.2.1-150200.72.2

qemu-audio-alsa: before 4.2.1-150200.72.2

qemu-kvm: before 4.2.1-150200.72.2

qemu-x86-debuginfo: before 4.2.1-150200.72.2

qemu-audio-alsa-debuginfo: before 4.2.1-150200.72.2

qemu-audio-pa: before 4.2.1-150200.72.2

qemu-ipxe: before 1.0.0+-150200.72.2

qemu-seabios: before 1.12.1+-150200.72.2

qemu-sgabios: before 8-150200.72.2

qemu-microvm: before 4.2.1-150200.72.2

qemu-vgabios: before 1.12.1+-150200.72.2

qemu-arm: before 4.2.1-150200.72.2

qemu-arm-debuginfo: before 4.2.1-150200.72.2

qemu-block-curl: before 4.2.1-150200.72.2

qemu-block-ssh: before 4.2.1-150200.72.2

qemu-lang: before 4.2.1-150200.72.2

qemu-guest-agent-debuginfo: before 4.2.1-150200.72.2

qemu-block-iscsi: before 4.2.1-150200.72.2

qemu-guest-agent: before 4.2.1-150200.72.2

qemu-ui-spice-app: before 4.2.1-150200.72.2

qemu-debuginfo: before 4.2.1-150200.72.2

qemu: before 4.2.1-150200.72.2

qemu-debugsource: before 4.2.1-150200.72.2

qemu-block-curl-debuginfo: before 4.2.1-150200.72.2

qemu-ui-spice-app-debuginfo: before 4.2.1-150200.72.2

qemu-tools: before 4.2.1-150200.72.2

qemu-block-ssh-debuginfo: before 4.2.1-150200.72.2

qemu-block-rbd-debuginfo: before 4.2.1-150200.72.2

qemu-block-iscsi-debuginfo: before 4.2.1-150200.72.2

qemu-tools-debuginfo: before 4.2.1-150200.72.2

qemu-block-rbd: before 4.2.1-150200.72.2

qemu-s390-debuginfo: before 4.2.1-150200.72.2

qemu-s390: before 4.2.1-150200.72.2

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230878-1/

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.