CVE-2024-26328 - OpenCVE

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c does not set NumVFs to PCI_SRIOV_TOTAL_VF, and thus interaction with hw/nvme/ctrl.c is mishandled.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://lore.kernel.org/all/20240213055345-mutt-send-email-mst%40kernel.org/
https://lore.kernel.org/all/20240218-reuse-v5-1-e4fc1c19b5a9@daynix.com/
https://nvd.nist.gov/vuln/detail/CVE-2024-26328
https://security.netapp.com/advisory/ntap-20240419-0010/
https://www.cve.org/CVERecord?id=CVE-2024-26328

History

Wed, 06 Nov 2024 15:15:00 +0000

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}`	cvssV3_1 `{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-02-19T00:00:00

Updated: 2024-11-06T14:39:09.161Z

Reserved: 2024-02-19T00:00:00

Link: CVE-2024-26328

Vulnrichment

Updated: 2024-08-02T00:07:19.233Z

NVD

Status : Awaiting Analysis

Published: 2024-02-19T05:15:26.263

Modified: 2024-11-06T15:35:12.510

Link: CVE-2024-26328

Redhat

Severity : Low

Publid Date: 2024-02-19T00:00:00Z

Links: CVE-2024-26328 - Bugzilla

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{"bugzilla": {"description": "QEMU: NVMe: out-of-bounds memory access in nvme_sriov_pre_write_ctrl()", "id": "2264896", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2264896"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c does not set NumVFs to PCI_SRIOV_TOTAL_VF, and thus interaction with hw/nvme/ctrl.c is mishandled.", "A flaw was found in the NVMe emulation support of QEMU. The register_vfs() function in hw/pci/pcie_sriov.c does not set NumVFs to PCI_SRIOV_TOTAL_VF, causing the interaction with hw/nvme/ctrl.c to be mishandled. This issue could lead to out-of-bounds memory access in hw/nvme. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition."], "name": "CVE-2024-26328", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "virt:rhel/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:av/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26328\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26328\nhttps://lore.kernel.org/all/20240218-reuse-v5-1-e4fc1c19b5a9@daynix.com/"], "statement": "The affected code path can only be reached if dev->exp.sriov_cap is set. For example, if QEMU is explicitly launched with the hw/nvme SR-IOV emulation enabled (parameter `sriov_max_vfs` is set). The emulation is exclusively used to emulate NVMe devices with SR-IOV capabilities for host software development purposes. Thus, the security impact of this CVE is Low.\nThe `qemu-kvm` versions, as shipped with Red Hat Enterprise Linux and RHEL Advanced Virtualization, are not affected by this flaw as they did not include support for NVMe emulation.", "threat_severity": "Low", "upstream_fix": "qemu-kvm 9.0.0"}