Heap-based Buffer Overflow Affecting qemu-kvm-device-display-virtio-gpu-pci package, versions <18:10.1.0-16.el10_2.5.alma.1


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-ALMALINUX10-QEMUKVMDEVICEDISPLAYVIRTIOGPUPCI-19265352
  • published26 Aug 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-48914  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 qemu-kvm-device-display-virtio-gpu-pci to version 18:10.1.0-16.el10_2.5.alma.1 or higher.
This issue was patched in ALSA-2026:58571.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-device-display-virtio-gpu-pci package and not the qemu-kvm-device-display-virtio-gpu-pci package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.

CVSS Base Scores

version 3.1