CVE-2024-3446

Qemu: virtio: dma reentrancy issue leads to double free vulnerability

Description

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.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization
Affected: Red Hat Red Hat Enterprise Linux 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:6964 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-3446 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2274211 issue tracking
https://patchew.org/QEMU/20240409105537.18308-1-philmd@linaro.org/
https://security.netapp.com/advisory/ntap-20250502-0007/

Frequently Asked Questions

What is the severity of CVE-2024-3446?
CVE-2024-3446 has been scored as a high severity vulnerability.
How to fix CVE-2024-3446?
As a workaround for remediating CVE-2024-3446: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2024-3446 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-3446 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-3446?
CVE-2024-3446 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization, Red Hat Red Hat Enterprise Linux 9.
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