Out-of-Bounds Affecting qemu package, versions <1:7.1+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5693928
  • published21 Apr 2021
  • disclosed6 May 2021

Introduced: 21 Apr 2021

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

How to fix?

Upgrade Debian:13 qemu to version 1:7.1+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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