Vulnerability · Published Sep 11, 2023 · Assigned by mitre
CVE-2023-42467
Medium 5.5
In plain English
A medium-severity security flaw in the qemu-guest-agent package (AlmaLinux). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 63.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | qemu-guest-agent | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-img | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-audio-pa | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-block-blkio | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-block-curl | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-block-rbd | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-common | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-core | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-display-virtio-gpu | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-display-virtio-gpu-ccw | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-display-virtio-gpu-pci | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-display-virtio-vga | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-usb-host | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-device-usb-redirect | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-docs | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-tools | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-ui-egl-headless | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-kvm-ui-opengl | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| AlmaLinux:9 | qemu-pr-helper | 17:8.2.0-11.el9_4 | ALSA-2024:2135 |
| Debian:12 | qemu | 1:7.2+dfsg-7+deb12u3 | DEBIAN-CVE-2023-42467 |
| Debian:13 | qemu | 1:8.1.1+ds-1 | DEBIAN-CVE-2023-42467 |
| Debian:14 | qemu | 1:8.1.1+ds-1 | DEBIAN-CVE-2023-42467 |
| Rocky Linux:9 | qemu-kvm | 7:8.2.0-11.el9_4 | RLSA-2024:2135 |