Buffer Overflow Affecting qemu-img package, versions <15:6.2.0-11.module+el8.6.0+20722+b0f1ae3c.2


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

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  • Snyk IDSNYK-ORACLE8-QEMUIMG-2976054
  • published2 Aug 2022
  • disclosed29 Apr 2022

Introduced: 29 Apr 2022

CVE-2021-4207  (opens in a new tab)
CWE-120  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:8 qemu-img to version 15:6.2.0-11.module+el8.6.0+20722+b0f1ae3c.2 or higher.
This issue was patched in ELSA-2022-5821.

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:8 relevant fixed versions and status.

A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values cursor-&gt;header.width and cursor-&gt;header.height can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

CVSS Scores

version 3.1