Double Free Affecting qemu package, versions <1:9.0.2+ds-4ubuntu2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-UBUNTU2510-QEMU-15426526
  • published5 Mar 2026
  • disclosed9 Apr 2024

Introduced: 9 Apr 2024

CVE-2024-3446  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Ubuntu:25.10 qemu to version 1:9.0.2+ds-4ubuntu2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:25.10 relevant fixed versions and status.

A double free vulnerability was found in QEMU virtio devices (virtio-gpu, virtio-serial-bus, virtio-crypto), where the mem_reentrancy_guard flag insufficiently protects against DMA reentrancy issues. This issue could allow a malicious privileged guest user to crash the QEMU process on the host, resulting in a denial of service or allow arbitrary code execution within the context of the QEMU process on the host.

CVSS Base Scores

version 3.1