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CVE-2022-3872

Date: November 6, 2022

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.

Language: C

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2022-3872
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-3872
https://security.netapp.com/advisory/ntap-20221215-0005/
https://security-tracker.debian.org/tracker/CVE-2022-3872
https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html
https://www.mend.io/vulnerability-database/CVE-2022-3872

Severity Score

Weakness Type (CWE)

Off-by-one Error

CWE-193

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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