Divide By Zero Affecting qemu-img package, versions <15:4.2.1-10.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE7-QEMUIMG-2598537
  • published10 Apr 2022
  • disclosed2 Jun 2021

Introduced: 2 Jun 2021

CVE-2020-27661  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade Oracle:7 qemu-img to version 15:4.2.1-10.el7 or higher.
This issue was patched in ELSA-2021-9335.

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 divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

CVSS Scores

version 3.1