Off-by-one Error Affecting qemu package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-UBUNTU2004-QEMU-3111858
  • published10 Nov 2022
  • disclosed7 Nov 2022

Introduced: 7 Nov 2022

CVE-2022-3872  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1