Out-of-Bounds Affecting qemu-project/qemu package, versions [,6.1.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3007067
  • published26 Jan 2022
  • disclosed6 May 2021
  • creditUnknown

Introduced: 6 May 2021

CVE-2021-3507  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.1.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds. A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.

CVSS Scores

version 3.1