What’s Vulnerable › Vulnerabilities

CVE-2022-3872

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-11-07 · updated 2026-06-17
• Weakness: CWE-193

Description

An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Affected products

• QEMU: before 7.1.0; 7.1.0, 7.1.0-rc0, 7.1.0-rc1, 7.1.0-rc2, 7.1.0-rc3, 7.1.0-rc4 — fixed in 7.1.0

How to fix

Upgrade to a fixed version: QEMU 7.1.0. Check the vendor advisory for mitigations.

References

• https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html
• https://security.netapp.com/advisory/ntap-20221215-0005/
• https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html
• https://security.netapp.com/advisory/ntap-20221215-0005/

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