CVE-2024-26327: qemu Memory Corruption — Fix

Description

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

CWE-122 CWE-122

Affected Products

Vendor	Product	Versions
qemu	qemu	7.1.0 — 8.2.1

References

Advisories & Patches

https://lore.kernel.org/all/20240214-reuse-v4-5-89ad093a07f4%40daynix.com/ https://lore.kernel.org/all/20240214-reuse-v4-5-89ad093a07f4%40daynix.com/

Other References

https://security.netapp.com/advisory/ntap-20240419-0010/ https://security.netapp.com/advisory/ntap-20240419-0010/

Frequently Asked Questions

What is CVE-2024-26327? +

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-26327? +

CVE-2024-26327 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-26327? +

CVE-2024-26327 affects products from qemu, specifically: qemu. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-26327? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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