Out-of-bounds Read Affecting qemu-img package, versions <15:4.2.1-15.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-2604231
  • published10 Apr 2022
  • disclosed18 Feb 2022

Introduced: 18 Feb 2022

CVE-2021-3947  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Oracle:7 qemu-img to version 15:4.2.1-15.el7 or higher.
This issue was patched in ELSA-2022-9123.

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 stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.

CVSS Scores

version 3.1