Out-of-Bounds Affecting qemu-img package, versions <15:4.2.1-18.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ORACLE7-QEMUIMG-2964868
  • published2 Aug 2022
  • disclosed6 May 2021

Introduced: 6 May 2021

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

How to fix?

Upgrade Oracle:7 qemu-img to version 15:4.2.1-18.el7 or higher.
This issue was patched in ELSA-2022-9669.

NVD Description

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