Out-of-Bounds Affecting qemu-kvm package, versions *


Severity

Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS7-QEMUKVM-2023512
  • published26 Jul 2021
  • disclosed19 Apr 2021

Introduced: 19 Apr 2021

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

How to fix?

There is no fixed version for Centos:7 qemu-kvm.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by Centos. See How to fix? for Centos:7 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