A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-47589 A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
Ubuntu USN Ubuntu USN USN-7744-1 QEMU vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

A viable mitigation for this vulnerability is to disable RSS on the nic/virtio driver. This can be performed either with the following qemu-kvm command "-device virtio-net-pci,rss=off", or, alternatively, by directly modifying the KVM XML file to disable RSS using a standard configuration tool (ex. libvirt).

History

Wed, 21 May 2025 03:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Thu, 19 Sep 2024 06:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 19 Sep 2024 06:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H'}

cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H'}


Fri, 16 Aug 2024 17:30:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-08T07:13:50.565Z

Reserved: 2024-07-04T09:08:42.796Z

Link: CVE-2024-6505

cve-icon Vulnrichment

Updated: 2024-08-16T17:02:42.843Z

cve-icon NVD

Status : Modified

Published: 2024-07-05T14:15:03.420

Modified: 2024-11-21T09:49:46.400

Link: CVE-2024-6505

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-07-04T00:00:00Z

Links: CVE-2024-6505 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses